This coloring page features Tsvetan, an orange-skinned troll with bright yellow hair. He has a large, upturned nose and a wide, smiling mouth, giving him a cheerful and friendly look. His clothing consists of a green shirt and blue jeans and he has a big knife in his hand. To bring out Tsvetan's features, try using different shades of orange and yellow for his skin and hair. For his clothing, use a bright green for his shirt and a light blue for his jeans. The knife can be a metallic silver or grey to make it stand out even further. Finally, feel free to add in some small details, like shadows or highlights, to bring life and realism to the picture.