Illustrator with 10+ years of experience helping brands and publishers turn ideas into strong, memorable visuals. I specialize in character design and illustration for children’s books, packaging, book covers, and apparel. My work blends traditional drawing with digital techniques for warm, expressive results. I’ve collaborated with clients such as VISA and Starbucks, and I’m committed to clear communication, reliability, and high-quality results.…

Sergio Guillén

Illustrator with 10+ years of experience helping brands and publishers turn ideas into strong, memorable visuals. I specialize in character design and illustration for children’s books, packaging, book covers, and apparel. My work blends traditional drawing with digital techniques for warm, expressive results. I’ve collaborated with clients such as VISA and Starbucks, and I’m committed to clear communication, reliability, and high-quality results.…

Available to hire

Illustrator with 10+ years of experience helping brands and publishers turn ideas into strong, memorable visuals.

I specialize in character design and illustration for children’s books, packaging, book covers, and apparel. My work blends traditional drawing with digital techniques for warm, expressive results.

I’ve collaborated with clients such as VISA and Starbucks, and I’m committed to clear communication, reliability, and high-quality results.

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Skills

Experience Level

Language

English
Fluent
Spanish; Castilian
Fluent
French
Advanced

Work Experience

Label and character design at Kombu-cha company
January 1, 2025 - Present
Created label and character designs for the 'Wild' product line for Kombu-cha company.
Mural Designer at Hotel Presidente
January 1, 2024 - Present
Mural design for Hotel Presidente in downtown Costa Rica.
Illustrator at Digital Folklore Podcast
January 1, 2023 - Present
Illustrations for the 'Digital Folklore' Podcast.
Character Designer / Illustrator at "When the Sun Came Out" (Book)
January 1, 2022 - Present
Character design and illustration for the book 'When the Sun Came Out' by Enrique de la Espriella.
Winner, Call for Art Contest at Collective Arts Brewery
January 1, 2021 - Present
Winner of the Collective Arts Brewery Call for Art Contest.
Mural Designer at Starbucks Hacienda Alsacia
January 1, 2018 - Present
Mural design for Starbucks Hacienda Alsacia.
Self-publisher at "Gigantes en la Ciudad"
January 1, 2018 - Present
Self-publishing of 'Gigantes en la Ciudad' a modular coloring book.
Mural Design / Artist at Visa Skills
January 1, 2016 - Present
Mural Design for Visa Skills: Children’s Books; Educational Illustration; Character Design; Narrative Illustration; Background Art (2D) Murals.
Label and character designer at Wild Kombucha
January 1, 2025 - Present
Label and character design for Wild Kombucha brand packaging.
Character Designer and Illustrator at Enrique de la Espriella
January 1, 2022 - Present
Character design and illustration for When the Sun Came Out, a book by Enrique de la Espriella.
Contest Winner at Collective Arts Brewery
January 1, 2021 - Present
Winner of the Collective Arts Brewery Call for Art Contest.
Author/Publisher at Gigantes en la Ciudad
January 1, 2018 - Present
Self-publishing of Gigantes en la Ciudad, a modular coloring book.
Mural Designer at Visa Skills
January 1, 2016 - Present
Mural Design for Visa Skills: Children’s Books; Educational Illustration; Character Design; Narrative Illustration; Background Art (2D).

Education

Fine Arts Degree at Universidad de Costa Rica
January 2, 2006 - January 1, 2011
Master in Arts at University of the Arts London (UAL)
January 1, 2015 - December 28, 2025
Fine Arts Degree at Universidad de Costa Rica
January 1, 2011 - December 28, 2025
Course/Workshop at Banco Interamericano de Desarrollo
January 1, 2021 - December 28, 2025

Qualifications

Master in Arts
January 11, 2030 - January 1, 2015
Fine Arts Degree
January 11, 2030 - January 1, 2011
Revitalización Urbana con Industrias Culturales y Creativas
January 1, 2021 - December 15, 2025
Master in Arts
January 1, 2015 - December 28, 2025
Fine Arts Degree
January 1, 2011 - December 28, 2025
Course/Workshop
January 1, 2021 - December 28, 2025

Industry Experience

Media & Entertainment, Education, Professional Services, Other

Skills

Experience Level