Not that great at all
You didn't make the music, which was just about the only original thing in the flash.
The game does not have much content, and the content that it has doesn't look very original, ie: it looks like you ripped the graphics directly from Tankmen.
Dress up games aren't really that interesting, and don't take much to make.
I did like the little inverty circle things in the preloader, though. I think you could probably make a cool game out of something like that.