That helps a lot, thanks guys.
Nice bold colours, they look a lot stronger than mine and helps to bring out the depth.
Not sure why I chose a greenish palette, must have been thinking of zombie hands.
I developed the hand a bit since posting, but I've just seen your posts, so I'll try to take onboard the examples when I work on it further.

I might be going overboard with the dithering.
I like how you've captured the creases in the thumb CrazyMLC.
Rik, I like the highlights but the shading on the fingers make them look a bit too rounded and the knuckles are a bit lost.