You did a great job on this, they all look great. Only thing that looks slightly odd is Yuna/Twilight's skirt seems to be floating a bit high, but I figure you did that to keep the look of Yuna. If Gravity pulled it down over her flank and legs, I could see it looking less like Yuna since that kind of her trademark X-2 skirt. Pinkie looks great as Rikku and I love the idea of making Rarity be Paine! You did a great job blending all their designs.