I don't know if you changed your style a lot but it seems that you drew the newer Remilia using a different style (different proportions) so it's harder to compare them. Excluding the color both looks pretty good, the newer one shows that you improved in coloring.
Maybe it's just me, but I see the style of newer Remi just as a logical extension of older one. Main elements (eyes, hair, node, limbs) in both pictures are basically drawn the same way. Yet, the newer one seems like it was drawn by more steady hand.
So, Aoshi became more experienced, that's for sure.
UPD
request
Ah, forgot.
Kuroneko. :3