Here you will find a nice selection of vases from Perseus in which the goddess Artemis figures. Read the vase descriptions and click on the images of those which interest you. (Note: Not all of the images may be available to you.)
Thais—1200 Years of Italian Sculpture. Scroll down to Vanvitelli Luigi and click the thumbnail of his Fountain of Diana.
Search the constellations for Ursa Major, Ursa Mino, and Orion. An interesting site.