Because you're going to be dancing for most of your dress-up time, you'll be pairing blazers and jeans a lot. For that, you'll want more casual blazers. Also, the sweater pairing is sharp, though probably too warm for the dance floor.
I like the jacket and vest for myself, but could see this with dressy black or pinstripe pants and moderate heels. Not crazy about the belt or tie. Open collar white shirt or grey or teal t-shirt would look good.