I like to keep my start screen nicely organized with apps I need the most in such way, that the picture is almost completely seen (that means I have only transparent live tiles located on the picture, others non-transparent are underneath). The concept works well for me, so it hasn't changed for months, the only thing that I'm changing is the background.
My old start screen (picture I took and added temperature):
My new start screen (picture from internet):
Locked screen backgorund (picture from internet and added temperature):