I didn't really have a theme in mind when I started, I just chose a dress I liked and added in some accessories I would wear with it. All of the items I chose are from Modcloth. Their sale is almost over so have a look if you haven't already! Even though I've placed an order and really can't afford to buy anything more, I can't help but to look through all the sale stuff (and the non sale stuff) and pine!
By the way I'm really enjoying making these collages. I've wondered for ages how I could make magazine style collages easily and found that Polyvore has exactly the tool I need. Its really easy to use and I've been having lots of fun compiling lists of items to use in later collages. Next time I make one I'll try not to use exclusively Modcloth items lol. I swear its not nearly the only place I shop, I've just spent a lot of time browsing the last couple of days for myself and for my best friend. I love making wishlists for her, even though she rarely likes the things I choose! I often wish that I could force her to wear some of the things I pick out for her, I'm sure she'd look great! But she's very particular about the things she wears, which is obviously totally understandable. Maybe one day though I'll pick a dress and she'll decide its perfect and buy it and love it forever and ever. Hey, a girl can dream!