4K HD Wallpaper: Face. Hide. ID. Mask
From Sheila's portfolio is this new 4K image that can be downloaded under CC By license from her courtesy. If you like the photography, here's optimized for fit in desktop backgrounds and homescreen phones.
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 almost all tablets)
HTC, Samsung Galaxy & iPhone: 1080x1920 (compatible with many smartphones)
Camera: Canon EOS 5D Mark III | Lens: EF24-105mm f/4L IS USM | Taken: September 21, 2014
Settings: Aperture: f/13.0 | Exposure time: 1/60 | Focal Length: 88.0 mm | ISO / Flash: 400 / NO