Just got back from seeing the film again for the second time.
You know, in my opinion, this sculpt is actually pretty good. It can use some slight improvements, but I had it in mind during the parts when she was WW, and this sculpt really does actually look like her as WW. The first time I thought of it was when it showed that black and white picture of her that was in Luthor's file that Bruce Wayne was viewing, and I thought it looked pretty close to the sculpt. Then during the end fight scene, I thought it looked pretty close to her as well.
If you compare it to any other standard Gadot picture or the way she looked in the film whenever she wasn't in full WW garb, it doesn't look like her very much. But I felt that when she was in WW garb, it looked just like her. For some reason, her face looks different when she's in full costume as WW than what it does when she isn't; she seems a bit more exotic looking when not in costume.
I never thought the sculpt looked bad to begin with, but felt it could use some improving. While I still feel it could use some slight improvements, I have a new appreciation for this sculpt. It actually is pretty close, in my opinion.