This is a simple pose sphere that I created for displaying my own builds, and decided to share as a near-freebie.
There are 5 point lights which can be individually controlled for on/off and intensity, or collectively controlled, all through simple chat commands. Modifiable so you can move the lights around to best suit your pose and avatar.
Includes 2 "focal points" : When taking pictures of other Avatars, get them to alt-click on the focal point to keep their head where you want it, instead of it bobbing around as they move their mouse. These can then be moved by you to put their head in the perfect position for your picture.
This product works best when taking photos of other users, but there's no reason you can't use it for yourself.
Fully modifiable so you can put your own custom backgrounds. But I personally prefer to leave the BG as black and then add a background in Photoshop to avoid distortion, so I didn't add any texture-change functionality.