Im having a serious issue with the header image not optimising for mobile (tested on iphone 6s). I imported both your settings and demo file and this is now it turned out.
Mine: https://www.dropbox.com/s/fnaf6a2e9ed9wnj/12544088_10156434663540472_753994546_o.jpg?dl=0
Yours: https://www.dropbox.com/s/14l1nfj53ubbtg6/12544311_10156434663755472_269854126_o.jpg?dl=0
How do I correct this to view properly?