Likeness is great. Look into cool colours for the shadows. Bottom could have a little bit more work on the form so it looks like you're more angled. Super tempting to add reflections to the eyes, because they look great, but your likeness is so strong I think it distracts from the face (this is subjective though). I did a quick paintover to show you what I mean. Colours https://www.youtube.com/watch?v=9YMPI3Dg6i4&ab_channel=BenLustenhouwer Also you're amazing and tell me to bugger off if you think im being rude.

Your brushtrokes on the hair is pretty good,remind me a bit of sargent and zorn.If I have to give a critique,I think you made the skin tone too warm (and I'm saying that because your shadow and light feel like they have the same temperature to them.)I advise making the light cooler. I also think you put too much indication on the shoulder blade,i think you stick too much to the reference.Like here's an example of John singer sargent,you can still see the shoulder blade,but it's very indicative.(also now that I look at it,it's a good example of cool light and warm shadow) But other than that,keep going,I'm sure the next one will be better

Looks great tbh!:) Maybe you could try to blend some edges a little just to try it out. introduce some softer edges? Great 3d feel to it!:)job on describing the form!:)