Pincode Sign Up

Hello Dribbblers,
I'm glad to announce that I've been selected to represent @protopie in the middle east. As part of being the ambassador of this great tool, I need to create useful User interfaces and prototype them.
My first story will be about Pincode Sign up. I will be responsible for creating tutorials too.
On a side note I would like to talk about Visual Appearance, do you usually face problems creating the visual style of your next app? I will talk about visual appearance in my next story with @protopie