Brands with character.
Stories with a future.

BRANDING • CHARACTERS • ILLUSTRATION

An independent studio turning brand stories into visual identities, mascots and illustrated worlds.

Brands with character.
Stories with a future.

BRANDING • CHARACTERS • ILLUSTRATION

An independent studio turning brand stories into visual identities, mascots and illustrated worlds.

THE STUDIO / WHAT WE DO

Your story, made visible.

Gill connects strategy, design and illustration to create brands with a clear direction and a distinctive personality.

Brand strategy & identity

Positioning, narrative and a visual system that express your brand’s personality.

Mascots & characters

Characters that bring your brand to life and build a recognizable visual universe.

Illustration & storytelling

Illustrated worlds and visual narratives that connect your story to your audience.

BRAND IDENTITIES, CHARACTERS & ILLUSTRATION

Selected work

A selection of projects that bring together strategic thinking, visual identity and brand personality.

Claim

Character design and illustration for Claim, a username negotiation company. A visual universe built to give the brand personality and connect with Gen Z.

Claim

Character design and illustration for Claim, a username negotiation company. A visual universe built to give the brand personality and connect with Gen Z.

Neori

Brand strategy and identity for a home automation company looking to build partnerships with architects on high-end projects.

Neori

Brand strategy and identity for a home automation company looking to build partnerships with architects on high-end projects.

Super

A mascot created for the rebranding of Supera, an agency and consultancy specializing in internal communication.

Super

A mascot created for the rebranding of Supera, an agency and consultancy specializing in internal communication.

Tamires Mirlana

A brand identity for a physiotherapist and chiropractor, connecting an active lifestyle and natural treatments with Tamires’s rural roots.

Tamires Mirlana

A brand identity for a physiotherapist and chiropractor, connecting an active lifestyle and natural treatments with Tamires’s rural roots.

FOR AGENCIES, TEAMS & OTHER PROJECTS

Explore a wider creative repertoire.

Looking for a designer for campaigns, email design, digital content or printed materials? My full portfolio brings together these projects alongside my work in branding and illustration.

It includes work for brands such as LATAM and O-I Glass, developed through agency collaborations. Each project explains my contribution.

Gilmar de Castilho

I’m Gilmar de Castilho, the graphic designer and illustrator behind Gill.

My focus is brand strategy, visual identities and characters. My experience also spans campaigns, email design and digital communication, independently and through agency collaborations.

Gilmar de Castilho

I’m Gilmar de Castilho, the graphic designer and illustrator behind Gill.

My focus is brand strategy, visual identities and characters. My experience also spans campaigns, email design and digital communication, independently and through agency collaborations.

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“Our audience, a complex segment of Gen Z, was difficult to reach, and the founder’s vision did not appeal to them. Gilmar created a playful, accessible visual universe, giving everything a personality, and saved the project. The illustrations opened the door to clear, engaging communication that text alone could never achieve.

If a picture is worth a thousand words, a universe of illustrations and images says more than anything else.”

Lucas Carvalho

Designer at Claim

“The illustration of Manalaquinho was essential to bringing the rich culture of Amazonas into my product and brand. His artwork translated regional elements with authenticity and beauty, creating a real connection with the local audience and highlighting our cultural identity in an innovative and impactful way.”