UPDATE: Gave her a model with a consistent heterochromia if you want to include pictures where she has no eyepatch.
This was requested by ttt777, who wants to see her done in my style. And so, it took a lot of meticulous scouring for data, cropping, and even manual de-duplicating, splitting, and text removal, coalescing into a 411 image dataset.
One of the things I wanted to do was have it so that Mei's heterochromia was baked into the tag, but it seems that as it got absorbed, it just absorbed it outright. I tried a second version that had the heterochromia be absorbed into a separate tag that removes her eyepatch, but that didn't do the trick and may have made the LoRA worse, so I stuck with the original. I'm going to experiment with leaving the Heterochromia and green eyes well enough alone and see if that makes a difference. If it does, I'll make a 1.5 version for it.
The eyepatch tag is optional.