Hi Pegasus!
Let me add my "Welcome" to that of Sooz and Chameleon! I work mostly in 2-D as well, but I'm always experimenting and branching out & I used to dabble in Ceramics. I do think we have some 3-D artists. I've seen some fantastic mosaic art as well as a variety of altered objects here in Artellaland. And, we also have quilters, fiber artist, doll & jewelry artists. Those are just some I can think of off the top of my head. You might want to explore some of the Blogs & Galleries and maybe take a stroll through the Shoppes of Artella to look around.
I hope you find a good artistic fit, because as a community of artists, Artella is chock full of inspirational & supportive souls.
Hugs, Julie 