In college we´re drawing horses and bulls with two colors, a base and light one and a shade one. So, this is mostly to use your brain and figure where the lights and shadows go.
I have a veeeery long way to go with that, so i`ve been practicing in PS. Only two colors, not changing the opacity nor size of the one and only brush i used
You can find them all on
my tumblr. The purple one is on DA. The red one is a WIP gift for a friend, and the green one is for me Ü (motherfuckingfuckyesplz)