They sure look amazing after they shed, don't they? Are you sure this girl is really 2 years, old, though? If so, she is really tiny. She looks perfectly healthy otherwise, though! My 1 year olds are about this same size and I had a really difficult time getting them switched over to frozen/thawed, so they had missed a few meals during the first few months I had them. I remember you saying this girl will only eat gerbils.