I made another layer over the base shading, and set it to a second shading layer (on top of my lines and color layers). I set this layer to Multiply, then select just the character with the select tool, then use the gradient tool (my favorite tool in PhotoShop, lol) to make a gradient of the shadows. Does that make sense?
For the base shading layer I just use a brush with soft edges and erase the bits I don't want with an eraser with soft edges. ;3
Thanks Gii. Trying to get better at action poses, they're much more difficult to do for me than standing ones, but I really like how this came out as well. I looked at a lot of different feline refs. ^^