http://www.tfw2005.com/boards/transformers-fan-art/221281-jimbojones-mighty-muggs-style-avatars.html There.
If you want to do requests for your avatars, then please follow Maximus Prime's example. He has a thread to show off his work and for people to discuss them in 2D artwork, and another thread simply for requests to be made in the REQUESTS forum.