Welcome to the most elite model car building club on planet earth Phil!!!
Your Mustang looks pretty good from what I can see...your pics are the biggest problem. More lighting would help (try outside if possible) and a digital camera with at least a 5-6 megapixel sensor. The Macro feature helps sometimes, depending on the distance away you are. Place you settings on the finest (takes up the most space) so you can crop the pic (without the graininess) before posting. Tripod helps also. Practice, practice, practice!