I like the one with the bandanna, for some reason that's absolutely enchanting!
You said you wanted to do the bottom three, which is commendable. For too many people, a character's hairstyle is as fixed as their fur color. It's helpful, because it's simpler to draw and allows you to instantly recognize characters. HOWEVER, it's pretty unrealistic. How many girls do their hair the same way every day like that? Adding a level of detail means you get points in my book!

(I still kind of wish she'd wear a bandanna at times...)

XD ~ I do my hair the same every day. Then again, my hairs' too short to do anything different. Ahaha...
I kind of like the bandana, too. Maybe I'll draw her in in when she's working on things, like housework or gardening. Hoh hum. :'3 ♥