Hey, looks like your progress is coming along nicely! You've got a good start on your AR too! I need to get working on my carbine!
I too used the rondo method on the inside of my helmet and loved it.
Looks like you have a lot of sanding ahead of you. Just some tips that I had to learn the hard way. It looks like from your second pic that some of the resin was drizzling down before it cured. I did that on my first helmet and totally screwed it up. It was really hardened but when I went to sand off the excess resin, I actually broke part of my helmet.( I was probably going to fast).
I find it best to go in lighter coats, and have 2-3 layers of resin. My second helmet turned out much better, going with lighter coats.