
Even on the grayest day, a botanical illustration can evoke the warm glow of the sun, the intricate veining on a leaf, or the freshness of summer berries. For watercolorist Katerina Kolberg, painting is an escape to the natural world. Turning her passion into a career, she has created award-winning illustrations and packaging designs for brands like Yoplait and Vivi Kola. While watercolor is known for its unpredictability, Katerina has adopted a methodical approach that provides ultimate control, making it possible for anyone to learn to paint with detail.
In this online course, discover Katerina’s techniques to compose realistic botanical illustrations using watercolor. Harness the expressiveness of wet-on-wet and the precision of glazing to capture the vibrant colors and textures found in nature. Retreat to your own oasis inspired by the lush detail around you.
25 lessons & 18 downloads

19 minutes, 35 seconds

10 minutes, 40 seconds

13 minutes, 57 seconds

15 minutes, 18 seconds

11 minutes, 3 seconds

16 minutes, 13 seconds
Step into Katerina’s world as she describes how she started painting and introduces you to a few of her favorite projects. Discover some of the classical and contemporary botanical artists who have inspired her approach to watercolor.
After familiarizing yourself with the materials you need, explore the fundamentals of color mixing and practice different types of washes. Then work on some exercises with the wet-on-wet technique, embracing the loose expressiveness of watercolor.
Take your skills one step further as you learn glazing methods to gain more control and add a burst of realism to your pieces. Delve into the relationship between hues and tonal values and find out how to recreate a variety of textures.
Then it’s time to tackle your project, first sketching out your overall composition. Take your own reference photo to create a more detailed drawing and transfer it onto watercolor paper. Experiment with glazes to paint your fruit, building up the volume with transparent layers and finishing up with the finest textures.
Next, apply Katerina’s approach to illustrating leaves and branches by working wet-on-wet with denser pigments. Step back and look at your piece as a whole to unify the tone through additional layering. Add definition with crisp water droplets and create a sense of motion by loosely painting in a couple of flying bumblebees to wrap up your artwork.
Create a botanical illustration using watercolor. Katerina paints pears on a branch surrounded by bumblebees, but you’re free to choose any subject you like.

Anyone who wants to use watercolor to create realistic botanical illustrations that immerse the viewer in the richness of nature.
No prior knowledge is necessary.
As for materials, you need 100% cotton watercolor paper, watercolor paints, a variety of brushes, masking fluid, and other easy-to-find materials that Katerina specifies in the course.

un curso muy interesante para aprender pinturabotanica
Très bon cours. De très bons conseils sur la prise des photos, les différentes techniques d'aquarelle, les mélanges de couleurs. Adapté à tous selon son niveau, permet de progresser pour les + initiés.
Excellent course! Katerina really helped me understand the traditions of botanical painting and how to implement them in my own painting.
Me ha encantado e inspirado.
Ótimo curso! Só precisa acertar o som que está desencontrado das falas e umas poucas distorções em um dos vídeos.

Introduction
The Basics
Gaining More Control and Tools for Realistic Painting
The Illustration: Drawing the Pears
The Illustration: Drawing the Leaves and the Bees
Final project
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Yes, this course is designed for intermediate artists who already have some experience with watercolor painting and want to advance their botanical illustration skills.
You’ll need artist-grade watercolor paints, a variety of brushes (including flat and squirrel mop), watercolor paper (preferably 300gsm or higher), masking fluid, a color wheel, and a board for stretching paper.
Yes, the course teaches you step-by-step techniques for painting realistic flowers, leaves, and fruits with attention to color temperature, gradients, and three-dimensional effects.
Absolutely. You’ll learn to mix complementary and analogous colors, use the color wheel for harmonious palettes, and avoid muddy results in your botanical paintings.
Yes, the course demonstrates how to translate traditional watercolor techniques into digital workflows using Procreate for botanical illustration.
You’ll master pigment lifting techniques using clean brushes and sponges, as well as strategies for correcting common watercolor mistakes without damaging your paper.
Yes, the course includes a section on designing and painting custom wedding invitations featuring botanical watercolor artwork.