Wow, nice work! Very good customisation of what you have to work with of what's currently in the game, I like the use of textures to get the hair for Gem.
Speaking of hair, a bob like Quorra's would be a very welcome addition for a future character Jak
and save poor Quorra here from having to make do with Alec/Layla's trim
Also, the Tron outfits work pretty well with Jak's Nuhkshalah character for that 'space visitor' look!