exposure has been a big thing that i've been dealing with lately - working with film makes it that much more difficult since you don't know how it came out until you've developed your film and contact sheet, and even then there's still a bunch of things that you can do when you're making the print itself (f-stop, dodging & burning, exposure time on the enlarger, etc).
as far as composition, i agree that a shot with a lot of thought behind it will definately show, but there are always times when you just see
a shot and right away it's a good one. really the best thing to do is just drive around every once and a while with your camera and just take random photos - my friend andy and i sometimes will just go out on the weekends with 3 rolls of film each and go through them all just going to the beach or from random mini-road trips. have fun with it is what i'm saying, i guess.
'yeah line stuff blows, i got a pair of the new pollards and once i took the wrapper off they spontaneously combusted' - schlonginatorjunk
apparel... we make clothes.