I just think he looks like Snoopy. Then again, Snoopy was himself appearing as a World War I flying ace. Are those pants over his shoes? I guess I'm not that familiar with war attire. It's good, if only because it brings me great memories of those comics. He even has a nice triumphant look.
It would be great to see a cartoon of this. It doesn't have that much variety though. It looks much like a tankmen. I just wanted something more unique. It's still a good and fun image.