4K HD Wallpaper: Green Leaves
Steve Buissinne is the talented photographer behind this macro photography. Green leaves image can be saved free under CC0 license from Steve's courtesy, so if you like it download from here optimized for use in desktop backgrounds, homescreen phones (looks marvelous), social media, blog articles, apps, web design projects...
Widescreen Desktop / Macbook (Retina): 2880x1800 (fits on: 2560x1600, 1920x1200, 1440x900)
High Definition HD 1080p: 1920x1080 (fits on: 1600x900, 1366x768, 1280x720)
Samsung Galaxy Tab & iPad: 2048x2048 (compatible with many tablets)
HTC, Samsung Galaxy & iPhone: 1080x1920 (compatible with many phones)