No reference.

I like the choice of color. Would be cool if the eyes complimented the rest though, try making them yellow/gold ^^

Things that need improvement:

- Lines in general, some are very edgy (I.e. the shoulder to the right and the hair down to the left)
- The shirts lines is a bit hard to see, make them harder/thicker.
- The upper lips lines are a bit too sharp.
- Increase contrast and make a more visible nose shadow, this is important.
- Creases are almost invisible, make them a tad bit darker.

I like the shirts pattern, how it's layered over the actual shirt and not embedded inside. However the fact that it's not centered on her is quite annoying, allign the two center lines to each shoulder. (Move the pattern to the left.

That's the same, no?

I understand what you want but don't understand what "not centered on her" means.