It’s a tragedy this hasn’t got more replies! (Sorry, couldn’t resist
)
Nice lighting and materials, am I right in thinking that you modelled the left mask and duplicated and pulled the points around for the second? Only the deformations around the mouth on the happy face look a little stretched in places and not as natural as the first…

But they are nice. I would horrify one, and glorify/beautify the other if I were doing it. I suppose I may someday now.