There is a science to photographing your art correctly. What works for photographing 2D art does not work as well for 3D art. Often, when submitting images for juried shows, allowances for 3D art is made by way of accepting at least 2-3 views of the work. Many artists shortchange themselves of even being considered because, well, there is no other polite way to say it, they take lousy photos of their art because they dont' want (or can't) to spend the money on hiring it out. However, you need not 'suffer' with bad images of your work with so many helpful people out there publishing lots of DIY articles on how to achieve this goal.
The folks at Handmadeology (the science of Handmade) publishes lots of great articles to help you out with. Such as, how to photograph your ceramic pottery!