I think you got robbed by the outliers on both entries and agree with your own assessment. And although you didn't ask for suggestions for improvement, I'll still offer some.
First, your putting greens are too loose. Try building them so the meat sits on top and doesn't sink in. Think "lift and separate" like a push up bra.
On the chicken, turn each piece 90 degrees. I don't know why, but chicken always does better on appearance when placed horizontally. Also, don't place the parsley on the corners of the center piece.
On the ribs, same thing...turn them 90 degrees so each rib is horizontal and put the extra rib on a side. Again, I don't know why but that seems to result in a higher appearance score.