I'm gonna try to clear this up.
There are two Mickeys I see in this picture, I have labeled them.
1) Good eye! You found a nice, classy hidden Mickey. They seem to be on every other panel.
2) This is obviously confetti. It is out of place, there are no others like it, there is no reason Disney would design such a beautiful chandelier and then put such a small, cockeyed Mickey like that on it. That's not the point of the hidden Mickeys. The hidden Mickeys are about having a Mickey naturally blend in to the point where you have to be focused on it to see it. This doesn't blend in, it sticks out. This is obviously just a piece of confetti.