Below is a picture of my female albino who weighed 60g when I bought her (she has taken two feeds with me so far) with with 600g(ish) male. She eats well and is healthy. Just as a comparison for you. Your BP looks very healthy and as long as they eat and don't lose considerable weight you have nothing to worry about!

On a guess (as I really do not know the age) I think my albino is around 2 and a half months and is a lot lighter.