This is awesome! You should go check out some of the 3D communities we have on Hive. The 3D Printing Community is small but growing. There's also Alien Art Hive if you're angling more towards surreal art but they seem to be relatively acceptive of most art. It's always nice trying to find a suited community seeing as the OCD community is only meant for posts that don't fit in anywhere else.

Edit: I also remembered there's Sketchbook.