You shouldn't have to make excuses for yourself. You have a photo with a duck face. He's going to have to get over it, because I mean, so what,,,Next time he does that just say "huhm"
I don't know but I think I would make more duck faces and wear lots of red eye shadow.
What do you mean does he like you? You can't know the answer to this from this one interaction.
He doesn't like duck faces or thinks a duck face does not suit you. It just means he is interacting with you socially, don't read too much into it. Wait and see what happens the next time you interact.