IMO:
1) You have a relatively steep occlusal plane of around 20 degrees and a convex profile. Counterclockwise rotation by way of some combination of modest anterior maxillary impaction and posterior maxillary downgraft would address your concerns, improving facial balance, increasing the projection of the lower third of your face, decreasing gingival exposure. Remember it is better to under-correct in the vertical dimension.
2) You seem to have somewhat of a narrow airway, so advancement of the maxilla and mandible may help improve respiratory function as well.
3) A modest genioplasty would also increase projection of the lower third, decrease submental soft tissue excess, provide a more aesthetic mentolabial fold.
