Don't worry, I SAID I was finished, but I knew there was things that needed to be improved/worked upon.
Image size is currently at 2800 pixels, so considerably larger than what you see here.
Once I get the time, I'll try to improve it with the tips you've provided. Thanks.
edit: Oh, and with regards to the wingtip being curved, I got the impression from photographs that it was actually quite a flat surface, certainly not as curved as the fuselage, at any rate.
Airliners.net Photos: USA - Air Force Fairchild A-10A Thunderbolt II I can see now how it curves away, towards the rear end of the wingtip, but the front looks pretty flat. Thoughts?