Giazelle Veloca, Thin Dancer, Bikini-Dress Multi-Colours

I don't think this is a very serious attempt at a dress. The skirt changes size dramatically if she spreads her legs, for example. I'm not sure a good workflow for this. I promise, I'm really not good at clothing. If you know how to rig a dress like this where it automatically does the right thing most of the time, let me know! I had some ideas, but what I tried didn't work well.

I've now settled on the workflow I showed in a previous post: surface deform most of it, smooth massively (way too much), shrink wrap to bring it back above her skin where it goes into her, displace, solidify. Several of those steps using weight painting to only affect parts of the dress.