Ryan Bliss designs and renders backgrounds for many types of phones, which he publishes at his website, digitalblasphemy.com. Navigate to the main page of his website. In the main toolbar, click Wallpapers, and under the banner, click Free. This will navigate you to a free sample of his work.
Ryan Bliss has been designing computer backgrounds since the 1990's. His computer generated backgrounds depict landscapes, fantastical creatures, space scenes and other photorealistic subjects. He is considered by some to be one of the most popular artists designing backgrounds in 2015. One of his most popular wallpapers, "Fluorescence," depicts neon blue, luminescent mushrooms against a black background.