Hey these are really nice! Did the handout come from a book?
Two pairs look a bit ambiguous to me though, the left in the last row (I've definitely seen eyebrows not situated precisely along the crest, but they seem rather high? and the left in two rows above the last (this one is only minor, just looking at the "keystone/trapezoid-looking" shape above the bridge its looks slightly lopsided).
I like the exclusion of frilly details for the sake of study though, the rest look fairly solid!