I would have to agree that it would benefit you in the future to just restart the pep work, but for a first attempt I would say you did decent! The helmet is definitely the most time consuming and most difficult piece of the armor. Some of my first peps were complete crap, and I've had to re-pep pretty much every piece of the armor at least two times. It really is something that gets better with practice. My best advice would be that if you do decide to start over, make sure to line up the numbers as perfectly as you can. Its just a big puzzle, so the more accurately you align the numbers, the more smoothly the piece will come together. I also agree that when it comes to the helmet, the visor does serve as the main support for the shape. Drgnfyre4 has a good point about starting with the visor. Anyway, keep up the hard work and keep us updated!
FTW,
Erin