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Very good point, I'll definitely be softening the jaw up. I have a thing for strong jaws on women so that's always a bit of an uphill battle for me haha.
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I don't intend to go completely representational with the colours on this, trying to do something a bit... arty. I know I want to use the red and I want to use it a lot, just not exactly sure how right now, probably not as it is, definitely something I'll be playing with as I develop it.
Awesome edit

Thank you so much. I'll be having a very close look at it. I was already toying with the softness a bit last night, the arm is in particular too defined for sure, I like where you took it, the emaciated look is nice. The pose is closer to what I was originally thinking gesture wise as well. Fresh eyes today and you've given me some good ideas, I'll have to have a think about what exactly I want to do with the piece and actually push it in some direction rather than mostly mindless doodling

Edit:

Mostly just noodling with the pixels now, probably won't make any major changes on her without outside input. Gonna start toying with a background. Thanks again for the edit Night, was a huge help, your clusters are really lovely, started using the colours off the block on her skin like you did, looks really nice.