The foundations

Create Professional Architectural Illustrations by Hand

A Skillset That Brings Ideas to Life With Purpose and Personality

| texas based illustration Studio

Interior designers want a visual process that keeps up with the rhythm of their work, one that supports quick thinking, clear communication, and the creative expression that often gets pushed aside when time is tight.

What they’re seeking is a way to show ideas in the moment, in their own style, without relying on visuals that feel rushed or generic.

Join the Foundations

Confident Hand Skills

Clear Creative Process

Distinctive Illustration Style

Most interior designers think beautifully…

But end up presenting through visuals that feel standard or disconnected from their creative process.

When the images that represent a project can only come from software or an outsourced rendering, the designer’s natural way of thinking, quick, intuitive, spatial, never fully comes through.

The workflow becomes more restricted, less creative, and less reflective of how designers naturally solve design problems.

Join the Foundations

Confident Hand Skills

Skills that make drawing feel doable, even on a busy schedule.

Clear Creative Process

A straightforward way to think and work on paper that saves time.

Distinctive Illustration Style

A look that reflects the designer’s own design voice, not the software’s.

I understand how full a designer’s day can be

client needs, creative decisions, and constant problem-solving all happening at once.

Anything new has to feel simple, relevant, and workable within the way designers already think and design.

  • Taught 1000’s of interior designers how to use hand skills in their interior design process and make it work for them.

  • 3 professional degrees, a bachelor in interior design, a master in interior design, and a bachelor in art, plus over a decade of teaching designers, I know how to break this skill down using the 80/20 rule so you learn only what you actually need.

  • Brought back creativity and energy to the interior design industry for over a decade by teaching hand skills to other professional designers.

Join the Foundations

Foundations is a five-module course that teaches the core hand skills interior designers need to work through ideas quickly and clearly.

It focuses on the essentials, sketching, drafting, drawing, and rendering, taught in a simple, practical way that fits a designer’s real schedule.

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the Foundations

Introducing

What You’ll Learn Inside the Foundations

  • Many interior designers jump into a project without a clear formula, which leads to avoidable problems and missed steps.

    Interior design is a methodical process, and knowing where hand skills actually belong makes the entire workflow smoother.

    This module breaks down the process and shows exactly how hand drawing fits into each stage so ideas stay clear and projects stay on track.

  • Sketching is the core of interior design, yet many designers avoid it because they don’t know how to sketch in perspective or feel unsure about where to start.

    This module teaches perspective in a clear, simple way that finally makes sense, so designers can sketch any idea they have and communicate it properly with everyone involved in the project.

  • Computer drafting takes time and forces every idea into rigid steps, but hand drafting lets designers focus only on the information that matters.

    It brings back the professional creative style designers used long before software, something clients still love.

    This approach supports quick decisions, keeps the process flexible, and results in accurate drawings that reflect the way designers naturally think through a space.

  • Many interior designers assume drawing and sketching are the same, but they serve completely different purposes.

    Sketching is freehand and fast; drawing uses tools to refine ideas after they’ve been approved.

    This module explains the difference and shows designers how to use drawing in the right stage of the process so time isn’t wasted jumping into precision work too early.

  • Adding color is the icing on the cake, but most interior designers buy a set of markers and have no idea how to actually use them.

    This module teaches the essential techniques, marker strokes, patterns, and recreating finishes, so designers can render their projects with ease and confidence.

    It’s a clear, practical approach to creating beautiful hand renderings that support the design and feel personal to the designer’s style.

Join the Foundations
Ivestment

THE foundations : 5 modules, hybrid learning styles, CRITIQUES, community

1 PAYMENT - $2,599
8 PAYMENTS - $339
VIP LEARNING - $10K
12 PAYMENTS - $229

| DISCLAMIER |

In-person VIP is four days long in my studio and must be paid in full seven days before the scheduled dates. This option covers one person only; team members may be added for an additional fee. Email hiya@bertrandwilliams.com for more information.

  • “Hand skills always felt out of reach"

    “But the Foundations course made everything finally make sense. I can sketch and communicate ideas so much faster now.”

    KELLY W., INTERIOR DESIGNER

  • "Something clicked the second time around in the Foundations Live Class"

    “I’m in the middle of a whole-house project with a big presentation coming up, and instead of dreading the visuals, I’m honestly having so much fun rendering that I’m considering redoing several of them just for practice. There are 16 spaces total and I found it easier and more enjoyable to show the design this way than struggling through complicated computer elevations. That shift alone feels huge. I finally want to draw again, and that’s entirely thanks to this process. I can’t thank you enough.”

    LEE W., INTERIOR DESIGNER

  • "The Foundations course by Shannin Williams is a complete education in rendering interiors for interior designers."

    “Shannin is a dedicated professional interior designer with years of experience teaching renderingg for interiors. Her course gives a full foundation in this process. Shannin is warm, engaging, approachable and thorough. If you have questions she has answers. After taking her course, i feel fully confident in my rendering skills. I can draw a room and fill it with furniture in scale and with the correct perspective and proportions. This class was a win win for me. I can't thank Shannin enough!”

    CAROLYN C., INTERIOR DESIGNER

STEPS TO GET STARTED


Enroll in the Course

Get immediate access to every lesson and the private community.

NO. 1

Learn OUR STEP-BY-STEP TECHNIQUES

Follow on-demand, step-by-step lessons created specifically for established interior designers.

NO. 2

USE YOUR HAND SKILLS ON REAL DESIGN PROJECTS

Apply all the methods and techniques you learned and implement them into your interior design process and show off to your clients.

NO. 3

Join the Foundations

Got questions?

FAQ’s

  • Foundations teaches a full workflow, sketching, drafting, drawing, and rendering, so even designers with some experience learn how to create consistent, clear visuals from start to finish.

  • Yes. You can learn on your own schedule from anywhere or join the live sessions when available. Taught 2 times a year, dates TBD.

  • Yes. You’ll join a private community where you can ask questions, share your work, and get feedback whenever you need it.

  • You will be provided a comprehensive supply list when you join. Supplies range from $300-$700 depending on your needs.

    Supplies are not included in the course fee.

  • Preferably, or very familiar with the industry. The course is created specifically for practicing interior designers, and the language, examples, and process are all based on real interior design work. If you’re not in the industry, parts of the course may feel unfamiliar or out of context.

  • No problem. You can always purchase the course at the market price and use it anytime you like. Prices do increase 3 times a year on our courses so we recommend you purchase when you are ready and watch when you can.

  • The VIP option offers four in-person days of focused, hands-on training either in my studio.

    It provides direct guidance, personalized instruction, and dedicated time to build the designer’s hand-skilled workflow quickly and with full support.

    email us at hiya@bertrandwilliams.com for further questions.

  • Unfortunately no. Refunds are not allowed under any circumstances as outlined in our terms and agreements stated on our webpage and checkout settings.

join the foundations

we help established interior designers step out of digital overwhelm and, create their ideas with clarity, creativity, and confidence again.

With professional training, years of teaching experience, and a method built specifically for interior design, this program offers a practical approach to hand skills that supports real project work.

The focus is on clarity, speed, and creative expression, giving designers an approachable system for working by hand without adding extra complexity.

Every part of the course is designed to fit the pace of a busy design practice and support the natural way designers think, plan, and solve problems.

About Shannin

Join the Foundations