Noxious: More shading skin

Yes, it's been a while. I was sick for a few days and didn't work on anything, and then focused on finishing up a commission piece. But that's all done now (well, I'm still recovering from being sick, so mostly done). But today I got back to Noxious. I decided that I definitely wanted to deepen the shadows on his skin, so I did that, along with a little bit of smoothing.