Design #2 in particular, something just feels off after I look at it. Might be inconsistent margins? Lack of focus for my eyes? I think a few more months of practicing and you'd be a great person to hire, but keep working on it.
You're in the home stretch and just have a bit more to go imo.
"For flare, I'd make the body text such as username/password small like an 11px font."
I am curious why you would say that?
Keep in mind, I'm by no means a designer and have no idea what I'm talking about.