The problem is the quality of the 3D character modeling, not the concept art/ideas for her new appearance
Here's the concept art:
I like the concept. But the implementation of that concept in-game is not good.
It's a bit like designing a new look for a sports car. The car looks great on paper and in concept paintings + scale miniatures, but when they go build it they misalign the panels, mess up the paint job, give it mismatched tires, etc.