Snoopy deformity - is it enough to loose the pocket and do a crescent lift? (Photo)

It appears your implants are riding higher than optimal, and an operation to lower the pockets would definitely improve lower pole fullness and apparent nipple-areolar complex position on the mound. However, what won't be helpful is a crescent lift. In fact, the crescent lift has no good indication. Removing a piece of skin above the nipple-areolar complex will not lengthen the distance from your nipple to inframammary fold. Only a full mastopexy or breast lift can do that, but you are not a good candidate for that because it appears you don't have skin excess, something that is necessary to move the nipple. So, please do not get a crescent lift. You should get a few second opinions from other, reputable surgeons before proceeding with your surgeon.

Dear Exciting748104,
breast revision surgery is the most difficult plastic surgery procedure performed. Botched breast surgery alters normal tissue planes and laxity, the ability of breasts to heal properly, and leaves scar tissue that dramatically affects the level of difficulty of the corrective surgery.Many patients come in to correct poor outcomes from their initial surgeries. The most common problems are due to implant malposition, bottoming out of the implant, poor scarring, and incorrect implant size.While the type of revision required will depend on the result of the previous surgery and the desired result of the patient, some revisions involve extensive pocket repair that may or may not need specialized external bras.If you are considering breast surgery revision, you should speak with a board certified plastic surgeon and have yourself properly assessed. Only after a thorough examination you will get more information and recommendations. Also, you have to make sure that your surgeon understands your breast augmentation goals.
Daniel Barrett, MDCertified, American Board of Plastic SurgeryMember, American Society of Plastic SurgeryMember, American Society of Aesthetic Plastic Surgery

From the photos it appears the implants are being held too high. Your outcome can be improved through surgically helping the implant drop into the pocket. A crescent lift may not be needed. Schedule a few consultations with board certified plastic surgeons near you to better evaluate options.