Hm; so, I want the skin to have a dull hue to it, like grey
probably a small flesh tunnel/plug for the earlobes

the yellow hair I tried to continue the complementary colour scheme going on with the skin, and the eyes follow this too
I have a lot of blue(ish) eyed characters.. but I don't think I have any purple-eyed ones at least.

I might desaturate the reds in the skin but it gives a nice tension
Concentric patterns are common in Escher IV traditional outfits and probably designs. Looks too royal. The shoulder design gives an illusion of a too short deltoid, will work on, and I can tell that arm is a bit on the thin side.

I need to stop drawing pecs on everything when I've told myself it shouldn't have them. I like geometric noses.

spend much more work on this than I originally intended (I intended not to at all)
I also sometimes like to keep really light terminators and leave the shadow flat and not very dark. I really should be in bed ...