OK, they're round, but not similar enough to eyes to fit the challenge well. The rest of the picture isn't very interesting, at least in B/W. Maybe it would look better if you could have gotten more head-on with the culverts and gotten just the four circles in the frame.
the contrast range (dark to light) is somewhat unbalanced, but your score is really going to be low because you haven't kept to the literal description in the challenge (human or animal eyes).
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