(Disclaimer: I just happened to wander here from ProjectComment, I'm not related to the artist in any way.) I was reading your comment and I was like "huh, what crookedness? This person is a nitpicker" but then I looked at it very closely and I think if the right corner (from the viewer's perspective, not the model's) was pushed inward (when thinking in 3D) and slightly upward, that would fix it. Also the right nostril (again from my perspective) is angled wrong (If you cover the other side of the nose, you will notice it immediately). The cheek looks a little bit too white, making it seem too even and shapeless. But these are just minor things. It's useful to have people on DA with such a keen eye because most people wouldn't notice things this minor. So I hope you won't be offended by me thinking you're a nitpicker, I wasn't entirely serious with that. I think overall, you made good observations. To the artist: You're really good. Comparing this to stuff in the "more" section, you've certainly developed. Keep up the good work.