So I don't have to make images for all outfits for all events, you would have a basic outfit and then one or two optional outfits if you've bought them. I might throw in a few short extra events you only get when wearing the right outfit. sort of like near the end of paperworks version you get to choose to go down to breakfast in the white tights or the shorts if I remember correctly.
As said before I would think of ways to alter outfits as well. So a rather modest outfit can do wonders later on.
I think outfits #3, #4, #5 and #6 are great, the first two seem a bit boring to me.
Regarding the question whether #5 was over the top I would say it depends on the story. At some point Amy might decide that in certain situations she deliberately wants to tease and provoke. It should definitely not be an everyday outfit, then it would be over the top, I would say.