If you ever need any help or ideas on how to improve on your techniques, the gang here on the forums is really helpful! I'd say this helmet is a really good first build but you're falling into the same trap I did way back when and used far too much hot glue. If you use enough so that it sticks but not squeeze out the outward facing edge you'll have an easier time sanding and cleaning up edges later on.
Keep up the good work and I can't wait to see the finished suit!