This one's mostly because of an off-site request. There is a pretty great SD1.5/Pony LoRA around already - and the Pony one does work with IL from my limited testing, but I figured I'd train one up natively in Illustrious.
Activation Tag: luimi-il (actually optional; the LoRA works very well without it, but if you need to boost the effect, it's handy)
Also, since a lot of this artist's images tend to run young... for now, I'm disabling NSFW gens. Might change it, and the gallery does show it works fine at generating adults, but I'll play it safe for now.