Image from an online source with a creator listed:
Creator, First M. Date created. "Title of Image." From Site Title. Retrieved Date (URL).
Cravens, Astrid. 2009. "Approach." From Astrid Cravens. Retrieved 17 October 2018 (https://astridcravens.com/artwork/2091072-Approach.html).
Image from an online source with no creator listed:
"Title of Image." Date created. From Site Title. Retrieved date (URL).
"Vienna, Austria Unknown Artist." 22 March 2015. Reddit. Retrieved 17 October 2018 (https://www.reddit.com/r/StreetArtPorn/duplicates/2zvt2d/vienna_austria_unknown_artist_found_exploring/)
Image from a print source with a creator listed:
Creator, First M. Date created. "Title of Image." In [Continue the remainder of the citation with citation information of the book or article as appropriate.]
Dürer, Albrect. 1497-98. "Four Horsemen of the Apocalypse." In [Stockstad, Marilyn. 1995. Art History. New York: Harry N. Abrams, Inc.]
Format: Author. year. "Title of work." Medium (format). Title of collection. Retrieved date (URL).
Faulkner, Rob. 2011. "A yawning alpaca." Image (JPEG). Yawn_A Yawning Alpaca. Retrieved 17 October 2018 (https://www.flickr.com/photos/robef/5688248840/in/photostream/).