Select the "strip" you want below (showing blue lines top and bottom of background), copy it, and on the home page, right click and paste about where you want the strip to go. Obviously, delete the home page old strip, too! 
Double check the mobile mode to make sure it's not super silly looking.
For the photos strip: select a photo, then select manage media to change them.
White Grass

Featured Jewels

White Grass

Recent Creations

Other assets for site belwow