Yes, I've noticed that her colour is very unusual... I'm gessing maybe it can be a variation of the colouration of your first pic...

Another strange thing is that her skin is completely smooth... and as we see on your pics, pyxies use to have (I don't know waht to call them) rough strips..

Here in Portugal it's very possible that she has been sold with a wrong name

That why I wrote this:

I bought him as Pyxicephalus adspersus
Anyway. I really like her and she's very beautiful