The seams look good to me, but there is a dent in the back on the left side. Did you use 110lbs cardstock?
The yellow/pink thing is really throwing off my perception.
Its hard to tell with the 2 differing colors of cardstock but it looks pretty good from what I can see. The JFO is one of my favorite helms so I'm glad to see another one being created! Do you have any pics of the helmet after you applied the resin?