I love the red tank, I think you should do some of that funky gravel and some funky crazy colored rock, and make it a 60's tank....
seriously, nice tank !
Funny seeing the red tank, just the other day I was thinkin about different colored backgrounds and how you normally see only either blue , black , or none.
Red is CRAAAAAZY MAN !!!!
I think green would be appropriate , know what I mean