Having a more open design is a good idea, though the proportions seem too exaggerated. Maybe scale things back a bit. Especially those spike things.
This one is the opposite problem. The mask feels too open and hallow. Try filling in the holes on the cheeks, and put some more detailing there. Though don't get rid of the cheek holes entirely.
The overall shaping is good, but it feels a bit too big and blocky. Maybe slim it down a bit? I have the least to say here, since personally I think this one works the best.
Again, its the opposite problem of the last mask. Its too small here. Try filling out the cheeks a bit, and add a hole on each, to represent the great version's cheek vents, kinda like what you did on the forehead.
I love the idea you had for the eyes. Though the rest of the mask is problematic. Its too abstract. The best advice I can give is to design the forehead mouth and cheeks a bit more like the great version, but not too much. Also, try and see what an asymmetric version might look like.