hello everyone....i am 16 and enjoy photography... my camera is a Canon 40D and i have a 28-135mm 3.5-5.6 IS lens..i dont have much experience but i am trying and getting better..i most often photograph cars but i do all things..please tell me what you think of the pictures below..i will also like to know what kind of lens you guys recommend for my camera...is what i currently have a good lens for "stay on" general use or is there something better that you recommend..also what is a good lens for shooting cars rolling like picture 9(i know #9 sucks just showing what kind of shot i want to take)..thanks in advance 1. 2. 3. 4. 5. 6. 7. 8. 9.