I recommend you to use this beautiful lake picture as your screensaver for iPhone 7. An alternative lockscreen with nature photo in high resolution. The resolution of this screensaver also been configured in 750×1334, an official resolution of Apple iPhone 7. I use this picture as the #9 of all 10 screensavers that you can download in free.
Read also: Screensaver for iPhone 7 (10 of 10) – Artistic Building Picture
Furthermore, here are all complete 10 screensavers that you can select and download:
10 Screensaver for iPhone 7
Screensaver for iPhone 7 (9) with beautiful lake picture