Endearing enough? What about passion?

I've been battling with myself whether I should or should not wear this to my friend's 18th birthday. Seriously, the skirt's nice and all, but it's just too casual. Don't you think?

Also, I am looking for a pair of lovely, studded ankle boots for my other friend's Vegas-themed debut. I was hoping to get my hands on a really cheap yet worthy pair. Can you suggest a store that has these qualifications? Hmm, I was thinking of SM Department Store.This is Gucci so don't go telling me to get a pair of these hottie.