18, female, should I consider a sliding genioplasty or v-shape surgery? Or other options? (Photos)

Based on these photos, correction of the chin by means of augmentation would be the most significant part of "shaping" your face. This can be achieved with implant as well as sliding genioplasty; implant will present oportunity to widen your chin in horizontal aspect. Rhinoplasty should be a part of that surgery. In person consultation witha board certified plastic surgeon with good reputation in both surgeries is recommended. Good luck.

The photographs demonstrate a dorsal hump on your nose and a recessive chin profile. Consider placement of a chin implant to augment the chin forward for better facial balance and proportions. A closed rhinoplasty approach can accomplish shaving down the dorsal hump, narrowing the bridge line and refining the nasal tip. Both procedures can be performed together under one anesthesia with one recovery period.