There we go, another piece of the puzzle :). I played for a while with different color approaches. I don't want to go 'full color' because a) it's a lot of work and b) I don't know how to do it properly!
So here is my artistic approach to a bit more coloring and a new way to draw main shadows.
Right now I think it looks ok, although I finished it a bit hastily as usual. I'm pretty sure in a few minutes I'll think a 3-year old would do it better. Let's press Publish quickly.
UPDATE: abide to the grammar nazis out there :)
Edit: Reformatted, changed font.