He looks really cool!
Perhaps the mask could have some sort of wasp-like mandibles. That’s certainly what comes to my mind when I think of insect faces.
I did play around with some stuff like mandibles around the jaw area but nothing really seemed to work. Plus one of Dragonfly’s closest allies is a wasp themed hero (Vespa, who’s around here somewhere) so it’s probably best to not use wasp characteristics here.