Generate half the girls in the same amount of time! It was fun to make but not really my thing, so I likely won't be improving on it.
When generating, I found removing any standard negatives that try to fix body proportions helped generate better pictures. Specifying whole body garments (like "dress" or "apron") doesn't work well and may require you to bump the weight. Generating at a weight of 1-2 works well, with upscaling at a weight of 1.