Artworks are usually not cited in a reference list. Instead, the information is included in a caption near the image. In this case, the only real difference between the two styles is where the date is located.
Artworks from electronic resources:
Fig. #. Artist First Name, Last Name. Artwork Title. Year. Medium. Size. Location or owner of work. URL.
Fig. 1. Jacob Lawrence. Crossing the Bridge. 1975. Screenprint. 19.5” x 25.875”. Art Institute of Chicago, https://www.artic.edu/artworks/189201/confrontation-at-the-bridge
Artwork published in a book:
Fig. #. Artist First Name, Last Name. Artwork Title. Year. Medium. Size. Location or owner of work. From: Author’s First and Last Name. Title of Print Source. Place of Publication: Publisher, Date of Publication. Page or Plate Number.
Fig. 2. Alice Neel. Nancy and the Rubber Plant. 1975. Oil on canvas, 203.2 x 91.4 cm. The Estate of Alice Neel. From: Ann Temkin et al. Alice Neel. New York: Harry N. Abrams, 2000. Plate 64.
Artworks published in an article:
Fig. #. Artist First Name, Last Name. Artwork Title. Year. Medium. Size. Location or owner of work. From: Author’s First and Last Name, “Article Title.” Journal Title vol. #, issue # (Month Year): page or plate number
Fig. 3. Abdel Hadi Al-Gazzar. Un Djinn Amoureux. 1953. Gouache and india ink on paper. 53 by 28 centimeters. Alexandria Museum of Fine Arts. From: Avinoam Shalem. "Exceeding Realism: Utopian Modern Art on the Nile and Abdel Hadi Al-Gazzar's Surrealistic Drawings." South Atlantic Quarterly 109, no. 3 (Summer 2010): 585.
An artwork you saw in person:
Artist First Name, Last Name. Image Title. Medium. Year. Size. Museum or place artwork is, Location (if not in museum name).
Fig. 4. Mickalene Thomas. Girlfriends and Lovers. 2008. Acrylic, enamel and rhinestones on panel. 108” x 144”. Akron Art Museum.