4K HD Wallpaper: Lionfish

The 4K image was taken at Seattle Aquarium by Brynn Tweeddale and from his courtesy the photo can be downloaded under CC By-Sa license and use as desktop background and homescreen phone.

Widescreen Desktop / Macbook (Retina): 2880x1800 (fits on: 2560x1600, 1920x1200, 1440x900)
High Definition HD 1080p: 1920x1080 (fits on: 1600x900, 1366x768, 1280x720)
Samsung Galaxy Tab & iPad: 2048x1536 (compatible with almost all tablets)
HTC, Samsung Galaxy & iPhone: 1080x1920 (compatible with many smartphones)

EXIF Metadata:
Camera: Nikon D3000 | Lens: 60.0 mm f/2.0 | Taken: April 6, 2013
Settings: Exposure time: 1/40 | Focal Length: 60.0 mm | Aperture: f/3.2 | ISO / Flash: 1600 / OFF

Photographer: Brynn Tweeddale from Seattle, United States | Flickr Portfolio
License: Creative Commons Attribution-ShareAlike 2.0 Generic.
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Thank you!