I feel like I have a reasonable understanding with shading curved surfaces though I feel like I might be struggling a bit with how to shade flatter surfaces. Any advice on how to gauge it properly?
Tried putting it all together using just the brush, eraser, and smear tool on one layer. Not used to this approach and feel I need to get a better grasp of the structure of the face so I can do the shadows better, but one step at a time right?