Actually, I noticed that you also used the second facial (head) option, which is a pretty big change compared to the default #1 that resembles SBPR's.
Yeah, all the colors in general have to be changed due to the newer (and better) coloring in HS. I had to do it to all my girls, too!
I think the bust size has something to do with the new physics in HS. Regardless, yeah, they do seem a little bigger in HS.
Honestly, I think just changing her face back to choice #1 gets her back to normal, but that's up to you. Naturally, you'll have to adjust her eyebrows again.
Yup, that's why I mentioned using face 1. Though, I have to say, face 3 doesn't look to bad, either? It's a little chubbier, though, heh heh.
I think her cheeks are fine, just gotta not use Face 2 and most will be back to normal! :)