Shading critique?

[monstarules]

Hi all! I've posted a few topics here and there before, mostly here regarding my sprites. Well I did a lot more work on them recently, and I've worked on one of the things that was lacking, wich was the shading, so I'm going to post how that's going along before I make another topic which compiles everything I've done in recent times.



This is an APC, it's been rather well recieved where I've originally posted it, but you guys are pretty good at critiquing stuff too. Thoughts? Suggestions?