Instructions: Tap the image. When the full-size image comes up, tap and hold to Download Image. Go to Photos, bring up the photo, tap the lower left-hand corner, and select “use as Wallpaper.”
Instructions: Tap the image, then tap “Download image.” Go to Settings, then Display and Wallpaper. Select Photos, and choose the photo you’ve downloaded. If your phone has a scrolling background, choose a scrolling wallpaper. If not, choose a stationary wallpaper.