7.

Pretty good shot but I would've like to see more of the profile of the plane.
It looks a little flat when you leave the tail out of sight.

Also I think you need to have some more light on the plane on maybe shot it from the other side.
Take a look at [url=http://www.simviation.com/cgi-bin/yabb/YaBB.cgi?board=studiov;action=dis play;num=1154427527]eno's lighting tutorial[/url]. It learned a lot from that ... Good luck!