Need a good outfit?? best answer will be given...?

i need a really good outfit for a few events that are coming up. not too dressy but not so casual. my style is like boho kinda thing and my style icons are alexa chung, mary kate olsen , Aggy deyn etc. i live in uk would anyone be able to get me an outfit together please?? preferably uk sites. my fave shops are urban outfitters, topshop, all saints etc. thanks you :) x