/cgl/ - Cosplay & EGL

I have IW's Constance in brown, which I love for everyday wear. Its very flattering and fits well and can be toned down very well.

I'm going to an event in a couple weeks that I'd love to dress up this dress. I have two ivory colored printed sets of tights, one with mushrooms and one with nautical elements that I'd used before, but I'd like to go a little bigger. What sorts of accessories do you think would really pack a punch with this? My immeadiate thought would be brooches and necklaces, but are there any other things I'm missing? Interesting belts, pretty high necked blouses?