Uhhh, YUM?! Yes, that's what I wanted to say. And I think it's supposed to be modeled after her eary 70's outfit, B4tm4n, with the shortie shorts and exposed mid rif. Oh, they had designers back then...
Great model. The costume could use a bit more contrast. It looks a bit "painted". Especially the belt. I'd separate the shield there into a definite belt buckle. And personally, I prefer Supergirl in a skirt. Overall...good effort. Keep working.