Opinions on this Spider?

[FireStorm]

The pairing was Spider male x Reduced Pattern "dinker" female. This was the first clutch for the female. She laid 5 eggs, but 2 went bad early on (don't think they were fertile). All 3 remaining babies were Spiders! But one of the Spiders (a female) is different looking. She's chunky, too. 89g at hatching. What do you guys think of her?

Here she is with her more normal sibling (who is already in shed, sorry):


Here she is by herself:







I will post a pic of mom later...thought I already had one saved somewhere but it is hiding.