Maybe the thing that is causing you to tingle is the difference between font sizes in the "Bubble canopy" and the other planes?
Nah, but good that you notice that.
Wings, wings look wierd. I don't have time for this now, but I will try to work with them, see what I can change to make it better.
I think i know exactly what you mean, it's very visible in the first green airplane posted, isn't it?
EDIT: Check my previous post again, please, i think it's better now.