Hope you don't mind if I answer. But a nature is a personality like brave, kind, careful and things like that. Your abiliy is what your pokemon uses in battle, like for your Buizel (Buoysel) It is swift swim as it's ability. All pokemon have one or two abilities that help them when they battle. Hope that helps you out.

(Thats right) Once you complete it, I will make your account for you.