I thought it's a giant camo alligator with God's lipstick on its back.
Fix the lineart... please? And the shading is "furry". It would look good on blanket or maybe on a cat, but NOT with tanks. You need edges.
http://upload.wikimedia.org/wikipedia/en/5/56/Shagohod.jpg
tracer with a spraycan?
It does look spraycanned... but you may just have a very good eye...
So I'll give ya the benifit of the doubt. Nice work.