The rim lighting is difficult for me, and almost seems perfunctory. It’s a sort of cheap trick often used in comics. But it is also a really effective way to articulate form in shadow, which works for this sort of subject. Note that I’m not an expert at this, I’m learning it as an exercise, and this is only my second dedicated attempt to apply it.
I’ve also added patterns to the skin, and a rudimentary background (which the GIF animation botches) since last I updated. There’s still lots to do with the eyes, more lighting, depth of field blurring, and lots of persnickety final touches (especially defining the nostrils and teeth).
You might have noticed I flipped it. I think all digital painters with a bit of experience under their belts regularly flip their canvases back and forth. It helps see errors, and in the end it works both ways.
Incidentally, I think she’s gotten a bit more dangerous.
In the side-by-side comparison below I’ve added brighter details (subsequent to making the GIF animation above).
Below are previous stages I’ve shared.