Here's a beautiful and fairly large (~15mm) female Phidippus cardinalis I found a while back while wandering one of my favorite haunts.
She proved to be quite skittish and somewhat agressive - frantically darting around, waving her palps, and even baring her fangs at me a couple times. I ended up rolling up a leaf to make a little tunnel for her to relax in. In the image above you can make out the curl of her shelter reflected in her eyes. The blue of the background was yesterday's cloudless afternoon sky. Photographed with my 50mm at f/11 or f/16 reversed on extension tubes and focus stacked from 2 shots. The value contrast I usually strive for in my work isn't really here, but I liked the shot regardless.
Sorry for the infrequent uploads lately - I haven't had a lot of time for macro work lately, but be assured - more exciting shots are on their way (think Phidippus mystaceus...)
More artwork is up at my other account: www.flickr.com/panbasket/