Bloopers!

[MotorRoach]

Looks quite good, just not really a fan of the outlining. You might want to anti-alias it a little around there, like, break the outlining a bit, specially on the bright part of the head. That and the light source seems to be different on the rest of the body, compared to the head, so you might want to give the body shading a little better depth, as well make his tentacle lines a little weaker. I also noticed that there is a dark grey yet a black color on the palette, which feels unnecessary, specially since there is barely a difference between both. I'd get rid of the black and make his eye outlines the same color as the darkest grey, and perhaps make it a bit brighter as well, to go along the contrast.

Here, I made a demonstration of what I mean: