Looking good, BAM! I like the green to pink variations and of course the blood stains on his belt and the cloth around his feet are great.
If you feel like trying something new, I think it would be cool to see some drool dripping out from the right side of his mouth. He's kind of tilting his head, so it could be falling out a bit from the side that's angled down. I should say that I've yet to try this myself, but I recall Sproket had a tutorial which might work:
https://sproketsmallworld.blogspot.com/2011/07/step-by-step-guide-to-adding-slime-and.html . He colored his green for slime, but I'm guessing you can just leave it clear for drool. If you look at his Gutrot Spume piece, you'll see he had some clear stuff for the water.
Of course the orc looks good without it, so it's nothing you need to do. Just something to think about if you feel like adding a bunch of extra work!