APA does not just an interpretation of the rules.
Artist Surname, First Initial. Second Initial. (Year). Title of the artwork [Format]. Retrieved from URL
Van Gogh, V. (1889). Irises [Painting]. Retrieved from http://www.getty.edu/art/collection/
Treat like a journal article. Author(s) Surname/Last name, Initials. (Year). Article title. Journal title, Volume, Page numbers.
Only differences to a journal article reference will be the inclusion of a List of Figures in a Table of Contents and a Figure number as a label under the image/Figure.
Figure 3 displays the beauty of the panda.
Figure 3. A ponderous panda. Reprinted from National Geographic by S. Pradhan, 2016, Retrieved from http://www.nationalgeographic.com/photography/photo-of-the-day/2016/2/darjeeling-red-panda/
Pradhan, S. (2016) A ponderous panda [Photograph]. Retrieved from http://www.nationalgeographic.com/photography/photo-of-the-day/2016/2/darjeeling-red-panda/
Figure 4. Perugini, C. E. (1878 ) Girl reading. From Manchester Art Gallery, Manchester. Retrieved from http://artuk.org/discover/artworks/girl-reading-205798. Reprinted with permission.
Perugini, C. E. (1878) Girl Reading. [Painting] Retrieved from http://artuk.org/discover/artworks/girl-reading-205798. Reprinted with permission.
Note that if you modify or create a table from raw data found elsewhere e.g. Central Statistics Office then you should replace the word 'Reprinted' with 'Adapted'.
Similiar to Figures you could in theory be mentioning the Table 4 times;
According to the CSO (Table 1) only 17% of all age groups have not used the internet between 2010 and 2015.
Title above the Table:
Table 1 Descriptive title, e.g. Table 1 When People last used the Internet by Age Group in Ireland.
Caption/Label below table
Note. From 'When people last used the internet by age group'. Copyright 2014 by Central Statistics Office. Reprinted with permission.
Central Statistics Office (2014) 'When people last used the internet by age group' [Table] Retrieved from http://www.cso.ie/multiquicktables/quickTables.aspx?id=ica05
If in doubt check with me at firstname.lastname@example.org.