Hi,
Have you given her time to settle in? - for having her only two weeks you seem to have changed things around a lot and tried to feed a bit more than I would have. I know you say you have handled her only twice but you had to have disturbed her to change the bedding.
She hgas a wrinkle going along her neck in that pic which might indicate she is slightly dehydrated as well. What is her humidity at?
I'd also bump the hot end up a couple of degrees - try around 90-92f.
What was she eating for the breeder before you got her? Have you asked them to describe their setup so you can mimic it to reduce stress?
dr del