Looks pretty good, but compared to my actual GP-5 there are some mistakes.
#1 Gp-5s are grey, this is black and thus a GP-5M.
#2 Eyeholes a bit too high up.
#3 Filter a bit too long.
#4 Lenses a bit too close to the surface.
#5 the folds near the filter are all wrong
#6 No stampings on either the mask or filter.
#7 GP-5s are rubber, so why the yellow stitching?
#8 lense holders a bit too thin
#9 Filter still has the plug in it.
#10 Clasps on filter holder and lense holders slightly off, and a lack of grey cloth under them.
#11 no visible stiffeners in the lenses, i know they are reflective but no matter how much those things are always visible on the outside, as they are right up against the lenses.
#12 No visible stiffener marks on the outside leading to the filter from the lenses either.
#13 eyeholes a bit too far apart.
But still, this is alot better than I'll ever be able to do, so props on that.
Like, not bashing you or anything, but those are just the flaws that jumped out at me compared to my own mask.
Cheers m8,
~Mag47