Gather the following information on your artwork, if it is known: artist name, title, date, where the piece is currently, both the facility and city, where you found the image you are quoting and whether the source is a print or Internet source. If you are using a print source, note the title, author, publishing house and year in which the work appeared. If it's an Internet source, note the web address and date you accessed it for your research. You will need this information for your "Works Cited" page.
Write the text of your paper and follow the section in which you are quoting the art with the in-text citation. For the in-text citation, the proper format for one work by an artist is this: ([Artist's Name]). If you have multiple works by one artist, use this format: ([Artist's Name], one word of the title that identifies it). For example, in a paper about Leonardo DaVinci that references both the "Mona Lisa" and another work, use (DaVinci, "Mona"). If the artist's name is unknown, use (Anonymous). If you have several works in which the artist's name is unknown, use (Anonymous, one word of the title that identifies it).
Write a citation for the works you have used in the "Works Cited" list at the end of your paper. MLA requires hanging indentation -- the first line begins at the left margin and all subsequent lines of the citation is indented five spaces. The following is the order of information for a work found in a print source: "Artist's last name, first name. Title of artwork (in italics). Date of artwork. Institution where artwork is housed (if known), city where housed (if not part of the institution's name). Title of printed source in italics. By author (of printed source). Place of publication: publisher, date. Page or plate/figure/slide number. Print." If the artwork was found online, follow the format for a print work to the city where the work is housed and then substitute the "Print" source info with this: Name of the database or web site. Web. Day/month/year you accessed the website."