In the top i see white/dark/white/dark, like it's that pinched in problem people mentioned with the 6.
Mine has 1. So I accepted that as something i wont notice on a daily use. But I spotted it right away on yours.
That's me being nitpicky, because you asked me, while staring at a white screen. I don't now if you can even tell when you're using the phone normal.
if YOU are not happy with the phone, get it exchanged.