Forgive the simplicity, but isn't it possible that the juror just felt that other photos were better in his eyes than the landscapes this year? )
I think that could be a valid point had the juror actually looked at the prints, but he didn't. As Derek made clear, they were never even unwrapped to be adjudicated.
Derek, you express yourself very carefully and without rancor. If you can maintain that style, I agree, making a formal complaint might be a good idea. At least the sponsoring organization may be much more alert when selecting a juror in the future.