I am liking the hairstyles in this. Even the hair bun is refreshing on Patchy.

Perhaps Mori no Hon's intention of giving Shanghai a new outfit in Zwei was so that we can differentiate her from other random dolls.

Actually, it's a neat idea to actually give a variety of hairstyles for most of the Touhou cast.
I like all of Morino Hon's rendition so far.

Actually, if you look at Patchouli's hat, she SHOULD have buns under there. So all you're seeing is just Patchouli without a hat.