She certainly looks like a Golden Umbrous although I suspect dad Si may be showing Umbrous too so she could be double dose if Ponder is too...
Try to see if you can get a shot during the day with no flash on a neutral background of her and Si again. If she is Umbrous it may have come from Si as he does have quite dark ticking showing in some of the pictures. Look forward to seeing a good photograph of Ponder when you get back, and Stibbons too.
Matinee_92 (Helen) has a lovely Yellow Black or Melanistic Yellow as they are often known - Tumble - maybe she will show us some photographs if she gets the chance?
Someone needs some bitter nail polish too by the state of those nails
I was a nail biter myself when I went to University but my New Year's Resolution at 21 was to stop and I haven't ever done it since