Based on your photos and from an aesthetic perspective, you could benefit from a 3D lip lift (incorporating OOS technology for a better outcome with minimal scarring), a lower V-Y plasty, a medialized corner lip lift (the only procedure able to enhance the vermillion of your upper lip), a...
Feminisation of the face is a complex procedure and usually requires multiple interventions.
I would recommend Chin Reduction and Submental Liposuction. Other procedures that can be helpful in making a more feminine look can also be Rhinoplasty and Brow Lift.
FFS (facial feminization surgery) for the sis female. You are correct in your thinking that the same principles for male to female transgender patients can be applied. You should select a surgeon who has extensive experience and excellent natural results with this type of surgery. Most of these...
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