Tapering shape and smoothing edges of buccal fat graft? (Photos)

In ~2000 I had a fat flap grafted to my cheek to arrest Parry-Romberg Syndrome on my right cheek using microsurgery and some injection. Several revisions followed which left me with a fuller but droopy appearance and the PR did not progress. I had 2 facelifts more recently to lessen the droopy appearance but a deep crease remains near my mouth and the shape is unnaturally round. I'd very much like to have it tapered and smoothed. I am interested in opinions on my treatability and possible paths.

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