Nice collection, brother! You are going to love this helmet once you start painting it and putting on that Marmit. I think this helmet size is just abut perfect for the Marmit, provided you use a slim body. I absolutely love this project. I'm so stoked to look at my Stormtrooper next to Darth Vader now. It just looks authentic, finally.
I used Mr. Surfacer 1200 to smooth it out. You essentially just paint it on a little bit at a time until you start to see it smooth out, then sand it down. Be careful not to goop it on, just brush it on and it dries really fast, then you can go over it again where it still bumpy and rough. I did a few coats then sanded and went over the tough spots again and sanded down again before I painted. I think I put too many coats of paint on this one because I screwed up while painting and grabbed the wrong spray can and put the wrong white over it so I had to put 2 more coats than I normally would have. That's why I lost some detail.
If you need more details on how I painted the detail, let me know. I'm still planning to do stickers for the cheeks and temple dimples. That's the blue marks on check and grey and black paint in the dimples....as soon as I figure out my new printer.
good work Solo 
