I've seen many fine artists' galleries that have intro graphics on their main pages, and I liked the look and idea of them, so I made one for my own site:
http://www.swandogstudio.com. This "mandala", for lack of a better term, symbolizes much of what I am and what I love. I've always been obsessed with Celtic knotwork, Art Nouveau (Alphonse Mucha's works in particular), Medieval heraldry and carousel art, and so I've tried to combine all these styles into one. My fursona and otherkin/totem creature is of course Swandog (swan/saluki gryphon), with a separate unicorn side (thus the horn/alicorn in the center) and a separate luna moth side (which has since been combined with the unicorn). I'm also a nocturnal person and love pastels, ivy, waterlilies, pearls, seashells, stars, the moon, ribbons, tassels, spirals, feathers and wings. And being a Christian, I've included a Chi Rho symbol as well:
http://www.paperchrismons.com/images/colorme/chirho4clr.gif. The ivy border and wings were borrowed from my favorite of Mucha's images:
http://swandogstudio.com/am-ivy.jpg and the knotwork was inspired by this awesome artist:
http://www.castpaper.com/gallery.html :)