F350

hello everyone. i havent been drawing in a while, but i decided to whip this up during class yesterday (2 hours). the windshield is a bit wrong, and i ran out of room, but i was really just trying to get the shading right.
http://i51.photobucket.com/albums/f363/ilovedrawingcars/f350graphite.jpg
does anyone have any pointers for a nicer look?

thanks ~alex~

not bad. Could be a little darker

Is it supposed to be a low rider?

Nice. Add a bit of color perhapsw. Otherwise not bad.