Comic — cover key art by Jaime Martínez — Comic Cover

Lights — cover key art by Jaime Martínez — Lights Short film

Ultraheroi — cover key art by Jaime Martínez — Ultraheroi Key art

Kachin — cover key art by Jaime Martínez — Kachin Videogame

DO — cover key art by Jaime Martínez — DO Concept

Carta — cover key art by Jaime Martínez — Carta Comic

Portfolio — 2026 Illustration / Visual Development

JAIME MARTÍNEZ

Character Design / Storyboard / Comics

@therandomart · Portfolio 2026

Developing the gallery

Visual Development ✳ Character Design ✳ Storyboard ✳ Comics ✳ Games ✳ Visual Development ✳ Character Design ✳ Storyboard ✳ Comics ✳ Games ✳ Visual Development ✳ Character Design ✳ Storyboard ✳ Comics ✳ Games ✳ Visual Development ✳ Character Design ✳ Storyboard ✳ Comics ✳ Games ✳ Visual Development ✳ Character Design ✳ Storyboard ✳ Comics ✳ Games ✳ Visual Development ✳ Character Design ✳ Storyboard ✳ Comics ✳ Games ✳ Visual Development ✳ Character Design ✳ Storyboard ✳ Comics ✳ Games ✳ Visual Development ✳ Character Design ✳ Storyboard ✳ Comics ✳ Games ✳ Visual Development ✳ Character Design ✳ Storyboard ✳ Comics ✳ Games ✳ Visual Development ✳ Character Design ✳ Storyboard ✳ Comics ✳ Games ✳ Visual Development ✳ Character Design ✳ Storyboard ✳ Comics ✳ Games ✳ Visual Development ✳ Character Design ✳ Storyboard ✳ Comics ✳ Games ✳

[ Finding the soul of your project ]

Concept Art + Visual Dev

Concepts, explorations and visual identity. Unique ways for unique stories.

[ 01 / 04 ]

Painted · cinematic · 05 pieces

Dark times

Pilgrims approaching a floating temple at dusk, painted concept for DO — Approach concept

Wide desert vista with layered hills, painted concept for DO — Vista concept

Narrow rock passage bathed in warm light, painted concept for DO — Passage concept

Characters at a glowing threshold, painted concept for DO — Threshold concept

Color script board mapping the lighting beats of DO — Color script script

[ 02 / 04 ]

Flat colour · urban · 05 pieces

Kachin!

Urban corner with signage, flat-colour concept for Kachin — Corner concept

Cluttered interior set, flat-colour concept for Kachin — Interior concept

Ultra-wide Kachin street scene — arcade storefront, signage and graffiti, flat-colour concept — Street pano

[ 03 / 04 ]

Graphite · naturalistic · 06 pieces

Lights

Ridgeline study, graphite for Lights — Ridge concept

Stream crossing study, graphite for Lights — Crossing concept

Canopy study, graphite for Lights — Canopy concept

Tall vertical composition study, graphite for Lights — Vertical concept

[ 04 / 04 ]

Concept · 02 pieces

Rito

[ Coda ]

Scripts · the throughline · 02 pieces

Color keys

Long horizontal color script of a comic sequence, dozens of colour beats — Comic — color script 35mm

Color script board for Catharsis mapping mood across scenes — Catharsis — color script 35mm

The look of each world ✳ Concept ✳ Light ✳ Colour ✳ The look of each world ✳ Concept ✳ Light ✳ Colour ✳ The look of each world ✳ Concept ✳ Light ✳ Colour ✳ The look of each world ✳ Concept ✳ Light ✳ Colour ✳ The look of each world ✳ Concept ✳ Light ✳ Colour ✳ The look of each world ✳ Concept ✳ Light ✳ Colour ✳ The look of each world ✳ Concept ✳ Light ✳ Colour ✳ The look of each world ✳ Concept ✳ Light ✳ Colour ✳ The look of each world ✳ Concept ✳ Light ✳ Colour ✳ The look of each world ✳ Concept ✳ Light ✳ Colour ✳ The look of each world ✳ Concept ✳ Light ✳ Colour ✳ The look of each world ✳ Concept ✳ Light ✳ Colour ✳

[ The voices of your story ]

Character Design

Studies, explorations and final designs of animation and videogame characters.

[ 01 / 03 ]

Short film · 2025 · 05 pieces

Lights

Lineup of painted cat characters (placeholder) — Cast lineup ensemble

Two cats at night with fireflies (placeholder) — Night scene character

Cowboy cat turnaround, sketch to paint (placeholder) — Turnaround — paint stages process

Black silhouette studies of characters (placeholder) — Silhouette study process

Watercolour studies of cats and a heron (placeholder) — Studies process

[ 02 / 03 ]

Videogame · 2024–26 · 11 pieces

View project →

Kachin!

Remulla Games main cast, colour group shot (placeholder) — Main cast ensemble

Orange duck protagonist turnaround (placeholder) — The protagonist character

Octopus-faced scientist sheet (placeholder) — “G” — the scientist character

Octopus-brain professor, four versions (placeholder) — The professor character

Shark in fur coat and bowler hat (placeholder) — The enforcer character

Pterosaur lady with boba, colour variants (placeholder) — The socialite character

Elephant in cap and sunglasses (placeholder) — The mechanic character

Iguana in bow tie and trench coat (placeholder) — The dealer character

Timid crowned character sketches (placeholder) — The shy one character

Hippo boss line turnaround (placeholder) — The boss — turnaround process

Early cast lineup in ink (placeholder) — Early cast — ink process

[ 03 / 03 ]

Commissions · 2024—26 · 08 pieces

Illustration

Karmadoc Supershow ensemble

Card illustration: a queue of Mii-style characters holding tickets, receding into a starry sky — La cola character

Card illustration: a smiling man backlit in a bedroom of Nintendo memorabilia and framed characters — Leyenda character

YouTube thumbnail: a sushi chef slicing rice under the headline “Sí, es un sushi roguelike” — Sushiamo character

YouTube thumbnail: a nervous character in blue with a ghostly figure behind, headlined “El souls-like de tener novia” — Kobayakawa-san character

YouTube thumbnail: a border guard checking an alien’s papers, headlined “El Papers Please del Área 51” — Security 51 character

Juegos de YouTubers character

The cast of each world ✳ Turnarounds ✳ Studies ✳ Idle notes ✳ The cast of each world ✳ Turnarounds ✳ Studies ✳ Idle notes ✳ The cast of each world ✳ Turnarounds ✳ Studies ✳ Idle notes ✳ The cast of each world ✳ Turnarounds ✳ Studies ✳ Idle notes ✳ The cast of each world ✳ Turnarounds ✳ Studies ✳ Idle notes ✳ The cast of each world ✳ Turnarounds ✳ Studies ✳ Idle notes ✳ The cast of each world ✳ Turnarounds ✳ Studies ✳ Idle notes ✳ The cast of each world ✳ Turnarounds ✳ Studies ✳ Idle notes ✳ The cast of each world ✳ Turnarounds ✳ Studies ✳ Idle notes ✳ The cast of each world ✳ Turnarounds ✳ Studies ✳ Idle notes ✳ The cast of each world ✳ Turnarounds ✳ Studies ✳ Idle notes ✳ The cast of each world ✳ Turnarounds ✳ Studies ✳ Idle notes ✳

[ Ideas in motion ]

Storyboard

Animatics, music videos and acting practices, threaded one reel at a time into the gate. Pick a reel below; open the gate for the full cut with sound.