looks awesome!!!!!!!!!!!! and thank you too because i just noticed a bug where the hair background isnt being drawn behind all of her body, but in this case it looks cool how her ponytail droops over her shoulder like that. might have to keep that as an option if i fix that lil bug.
also yeah the boundaries are a bit restrictive. you should be able to extend the hair sprite downward because the origin is based on the top left of the sprite, so that won't mess with the placement at all. could make the image 1200x2400 for example as long as the hair keeps its position relative to the top left of the image.