Röskva really doesn't have blue skin: It's just that she's growing new fur which is much darker than the one she's already got!

Looks sort of weird and almost like she's going to get dark blue fur. Otherwise her colours are a very light off white and light chocolate brown on the legs, tail and upper back, with a faint mask.

But that's what happens, with some kits you can't really tell what they're going to look like when they grow up. The new fur feels like a very good winter coat.