For beginners coloring a tree 3D model, use free software like Blender, start with base colors (brown bark, green leaves), then add subtle gradients or textures for depth. Base colors lay a simple foundation—stick to real-tree references (e.g., warm browns for bark, muted greens for leaves) to keep colors natural and approachable. Practice with pre-made textures (from free libraries like Texture Haven) before painting from scratch, or use low-poly models to simplify the learning process while building skills.
