Gali Mistika manages to look even dumber in both versions.
Kopaka Mata doesn't work in either version.
Kopaka Nuva looks okay with two scopes, no scopes makes him look like he as an Elda.
Kopaka Movie looks like a weird robot with scopes, and an alien thing scopeless. Doesn't work.
Kopaka Phantoka doesn't work at all with scopes, but actually looks correct in the scopeless version.
Hey look, it's Solek!
(jokes aside, that probably is why it works: his mask wasn't made to have a scope, but instead was a modified Solek Mask with a scope attached)
Nuju, again, looks C-3PO-ish with scopes, and sorta dumb without.
Nitroblast works out surprisingly good either way.
Surge's goggle thing looked stupid to begin with. Having two of them just makes him look twice as stupid.
Stormer works either way, never have been a fan of that mouth thing though.
Rocka is another C-3PO.
Scopeless is okay, scopes doesn't work.
....you turned Kopaka into an angry anime character.
Scopeless one works though.
Really works either way, though I like the dual-scoped one better.
You skipped Hordika Nuju, too.