* means that ponies usually don't wear clothes.
Obvious DOWNLOAD for full resolution --> [link]
-- Fluttershy's Wardrobe
-- Rainbow's Wardrobe
-- Twilight's Wardrobe
-- Applejack's Wardrobe
-- Pinkie's Wardrobe
UPDATE: I missed three outfits. I'm not counting hats (I've skipped at least two or more).
UPDATE2: Added expressions and minor fixes. I had to redraw Rarity model completely to perform this.