The spot you circled on the right does look pinched. The top/left circle is too hard to tell from the pic. But... a pinched mantle doesn't necessarily mean its Pinched Mantle Syndrome...

Saying a mantle is pinched is a symptom. It may or may not be a symptom of PM. It can be a symptom of pests, light burn, or any number of things. Don't rush anything, especially if it seems to be doing well otherwise.

Do you have any blennies or gobies that like to perch? Or cleaner shrimp that like to be annoying?