She's not supposed to be an entirely realistic geisha. Have you ever seen a geisha with a brow piercing? :P
Anyway, the hand was supposed to be fixed. My fault, I inked it by mistake before my friend could intervene. é_č
As for the lower lip, hum, yeah, the shape leaves me slightly dissatisfied, too. I never was good at drawing lips. But I like her neck. I't a little too long, sure, but I think it gives her some kind of elegance.
The makeup... I don't know. What's in it that doesn't work exactly?