Roksolana Tkach
Watercolor · Scientific · 2D Illustration Painting nature in every detail.

Hand-painted watercolor and digital illustration for science, books and brands — from octopus anatomy to children's stories and jam labels.

Explore the work → Hire on Fiverr
★★★★★5.0 from 392 client reviews · 20+ illustrated books
01 / Cephalopods

Collections

Eight subjects

Trusted by clients
worldwide

Recognition
5.0
Average rating
★★★★★
392
Five-star client
reviews on Fiverr
20+
Illustrated books
published internationally
Lvl 2
Fiverr seller level ·
~1 hour response time
Selected clients & publishers Brooks InstituteEksmoFaberlicEscarfoAmazon authorsMartin
“Detailed, realistic watercolor of animals, birds, insects and plants — with a structured, reliable process behind every brushstroke.”
Roksolana's promise to every client

Featured: Cephalopods

Brooks Institute · Book

A series of scientific watercolor illustrations for a natural history book by the Brooks Institute — octopus, cuttlefish, nautilus and squid, painted with anatomical accuracy and a living, translucent palette.

Each plate starts as a careful study and ends as a print-ready figure, laid out alongside the scientific text.

View the series →

Studio wall

Recent & selected

About

Kyiv, Ukraine · Worldwide
Roksolana Tkach painting a turtle in watercolor — work in progress

I'm Roksolana Tkach, an illustrator specializing in watercolor and digital illustration for brands, packaging and children's books.

I create food and botanical illustration series for products, as well as 20+ illustrated books — children's stories and encyclopedias published internationally and on Amazon. My scientific work includes natural history plates for the Brooks Institute.

Made by hand, finished digitally

Most pieces begin as traditional watercolor on paper and are refined in Photoshop or Procreate, so clients get the warmth of real paint with print-ready, editable files.

I often work on long-term projects and multi-book series, helping clients build a consistent, recognizable visual style. My approach combines artistic detail with a structured, reliable process.

Scientific illustrationWatercolorBotanical & foodChildren's booksBook coversPackaging & labelsCharacter design2D animation assetsPhotoshopProcreate

Services

What I can paint for you
01

Scientific & natural history

Accurate animals, birds, insects, marine life and plants for books, museums, education and research.

02

Children's books & covers

Full picture books, encyclopedias, series and covers — consistent characters across every page.

03

Packaging & brands

Hand-drawn food, fruit and botanical illustration for labels, packaging and product lines.

04

Digital art & animation

2D characters, backgrounds and layered assets ready for animation, games and social media.

Step 1

Brief

We discuss subject, references, format and deadline.

Step 2

Sketch

Pencil or digital sketch for your approval before painting.

Step 3

Painting

Watercolor and/or digital painting with progress updates.

Step 4

Final files

High-resolution, print-ready files — PNG, PSD, JPG.

Commissions open

Let's paint your idea.

Tell me about your book, product or scientific project — I usually reply within an hour.