Well, based on this Screenshot.
I can 100% say that she needs more facial structures, her face need to look cuter, not the same old Dark ranger head. Try to take example on Ujimasa Hojo's Darkr anger model, her head is perfectly accorded with her ears. I aslo want to point that Sylvanas has little thing eyebrows and not those bug things you used, decrease they are too much large and a bit, just a bit too long.
You should try to decrease a bit that bow, too big.
I also suggest yoy to change the look of the hair on the model, make one of those things smaller than the other ... ect.
And for some other suggestions, only make to ... Make it better, I've seen that you tried to make it look like BFA cinematic ! Why not adding some Animation alternative to make her look more life a real Banshee queen ? I would suggest only the morph animation!