I, too, struggle with body image in costuming, though in my own peculiar way. I'll admit, I have more low esteem/struggle with my face than my body. Ever being the perfectionist, if I feel I don't really look like the character, even if I act a lot like them, I won't do a costume (not that I judge anyone else for doing that! This is just my own peculiarity).
There's a lot of pressure for women in costuming, to be sexy and revealing (regardless of where it comes from). I tend towards the modest/conservative side of things, so I don't like sexy costumes for the allure of being sexy. (I'd rather people keep their lustful stares away from me! Now, if someone finds me sexy in my Belle from Beauty and the Beast costume, well...not much I can do about that. Oh and it's happened!). We live in a very sex-obsessed, or at the least body-conscious society. Alot of that mentality bleeds over into costuming, just as it does fashion. Wear costumes that YOU feel comfortable with. Don't let anyone pressure you into wearing something you're not comfortable with, whether that's something revealing, skintight, or even on the other side of the coin, if people are telling you you're too big to properly represent a character. I've seen plenty of larger costumers whose costumes are unbelievably amazing and pull them off far better than their skinny counterparts! (Not knocking anyone's sizes or body weights, not at all! Sadly, we just all struggle at different points of the scale.)
I'll admit, I actually am getting a lot more pressure for NOT wearing revealing clothing. It's a weird phenomenon I've been observing lately. I'm an agency-represented model, so I am a tall, thin gal but I didn't realise that supposedly excluded me from wearing modest costumes for some people. I've actually had people get mad at me for not baring my midriff, chest, bum, legs, etc. I don't get it. Has anyone else experienced this?
The Senator - Hey, you groovy chic! I think you've got some pretty awesome stuff. You were a major help when I was trying to plan out my Catwoman costume.
Guri - Yay for getting your children involved in costuming too. That automatically makes you one cool parent!