Update on the run animation:
Thanks a lot for your detailed feedback, Pype!
You raise a good point about tile height relative to the character. I am planning to have the character duck and slide, so maybe bigger tiles would better accommodate that. But then again, I could just make the "crawl space" 2 tiles high. I also plan to make sloped tiles, so smaller tiles might give me more freedom there.
I agree the skirt will be interesting to animate! That's the main reason I've kept it, tbh. I also like the side-knot from the concept art, but that would require me to create unique left and right versions of every animation, which would be tedious to say the least... >_<