It looks like it is about to crash

 

it's really well done

is one of the pilots supposed to wiggle his head :S looks weird... also when the wheel is spinning at its fastest speed you could never see the wheel like that, maybe you should replace it by a circle at that speed.

What Lawrence said. The green starts to hurt my eyes after a while.

And what's with that one pilots head bopping up and down and side to side?

thank's lawrence! i dont know.. i just love to coloring the space (block/framing) between the object and the background.. but, sometimes for some situations i do make a transparent color

I guess you were going for a chunky, blocky, geometric style, so good job. It could do without the lime background though.