I got it!

I ordered my underbust pattern from Laughing Moon Mercantile. I decided that, while I do love my Victorian overbust, it's just not practical for wearing during work...my boobs don't need to be any higher, thank you very much. It calls for only 1 layer, but I think I'll do 2 layers, just because I'm way too fluffy for 1 layer to look good on.