You even put Gemril down there on the side. (He really needs more popularity.) Keep it up man!
Big or Blaze the Cat
Don't know the others.
Marine the raccoon (next to Blaze, infront of Eggman
The Babylon Rogues (Jet the hawk (green), Wave the swallow (purple), and Storm the albatross (grey))
E-102 Gamma (next to Storm) (both Omega and Gamma are robots)
Gemerl (Next to Shadow)
Emerl (above Gemerl)
Charmy (Next to Gamma)
Vector (above Espio)
Chaos (Next to Vector, above Espio)
Tikal (above Amy)
Vanilla (above Rouge)
Eggman Nega (next to Silver, above Omega)
I don't know where you see Omochao. If it's at the top of the picture, that's a normal Chao.
Awesome. The Entire Gang Is Here! Great Work.