I really wanted to make a Hime-gyaru style Lolita dress.. but it turned out just Hime-gyaru (it's a kind of fashion that is popular in japan). It was relatively simple to make, just a lot of fabric and a lot of work doing all the gathering and sewing.
The straps are two layers of lining plus a chiffon overlay with elastic inside. For the bodice, I made the lining from a pattern and gathered two layers of chiffon over it. I kind of altered it though, and added some shirred channels in the back. The rest of the dress is just a simple tiered skirt (except I used a ton of chiffon).
I had a hard time getting a good pic because of the wind, but here are a few to give you a good idea of what it looks like