....i like it
I actually thought it was pretty good! It is pretty rough sure, but clearly you could make something pretty damn cool if you take it nice and slow. If you focus a bit more time and patience into a project, you could do a really great job I think. You got potential guy, let it out:)
Practice uploads aren't really what you are supposed to upload on newgrounds. If it's not finished/"just a sketch," don't bother uploading it.
Add some color, too.
It's a good start. Honestly the amount of skill and effort you put into this is better than most of the things submitted here. Adding more time into your work and making the art less sketchy and using color and backgrounds etc... you could make a pretty decent flash. My only real complaint is the scene with he airplane. The plane's motion is off, I can't really explain it but look at videos of jet fighters doing maneuvers and just cruising and you'll probably see it.
Actually, this was pretty interesting. But don't dog on your work. If the author can't respect his own work, then why should anyone else?