IMO, the colors are nice. They're darker than what Elsa usually wears, but I take it that you're going for a different mood. That's okay.



But the face is way too harsh. I don't meant the expression -- it's fine that it's an angry expression. But you've made the face narrow and hag-like, with a jutting chin and sunken cheeks. Also, Elsa has much larger eyes in both the CG art and the 2D art.



I think a similar effect could be achieved with an angry, fierce look, but retaining more of Elsa's youth and rounder facial features, achieving the emotion through facial expression, not through actually changing the face/bone structure so much.



Just my opinion.