<edit> how do you guys like this kind of look for the inside?
and the exterior
Hmmm… reminds me of Tron (the Disney movie) but with more colours and shapes 
Right now, I can’t find much to comment, sorry 
in fact, can’t wait to see the “ring” where the battle will actually take place.
bump. updated.
LOL! I love the pig guy. The inside looks pretty good and it won’t distract from the main focus of the scene.