After getting some feedback from friends, I totally redid the shading and highlighting on his orange robe. The shading I did in a lighter version of the same blue/purple. The highlighting, I moved a bit and took up a little brighter. I think there's still a little touch-up and smoothing that can be done in a couple places (I'm looking at you, left sleeve), but I do think this is better. Still not sold on it; that purple is still an awful lot of contrast.