Oil brush for rendering realistic hair and fur.
1. Block out the silhouette (with Pen brush on my example) or shape and roughly set up light direction with a lighter value
2. Use my free Hair blender brush (check on Clip Studio Assets) to push out main blocks of hair/fur
3. Apply Hairs oil brush to create color variations and add details (don't forget to use square brackets [ ] for brush size widely).
4. Create new layers above with layer modes (Add, Overlay etc) with our working layer as a clipping mask to enhance lighting/color variations.
Here is a simple example of animal's tail rendered with my brush.
