[cypher]

She's lovely

Those are nice cages, nice wheel too, I do love those wheels!
It does look very empty though, I think all the space could be a bit intimidating, with a bit more cover & more to do/explore she may be less likely to hide away in her house.
It doesn't need to be anything fancy, the tube is a good size but probably best to keep that out for now as you are in case she decides to nest in it.
Maybe just some cardboard boxes or card tubes for now, you could also try hiding some of her food in things like that to encourage her to come out more.
The house looks ok for now but maybe a bit small for when she grows, not easy to tell from the photo.