What can I do to improve my face proportions? (photos)

Using a combination of Facials often improves balance and harmony. Best to have a consultation with and experienced individual for an evaluation and treatment plan. In addition to fillers there are other options which include the Endolift laser which tightens skin and stimulates your collagen.

A combination of Botox and Threads in the nose will lift the nasal tip significantly. I recommend doing this before considering surgery.
Fillers are a perfect way to balance out your profile and jawline.

A full set a facial photographs from all angles are required to make a determination about your nose and your chin. A closed rhinoplasty can accomplish making the entire nose smaller and less projecting. All the incisions are placed on the inside of the nose. No external incisions are required. When there's a recessive chin profile present, then consider placement of a chin implant to augment the chin forward which helps with facial balance and proportions, especially from the side profile with respect to the overly projecting nose.