From the 3/4 view, it's clear you have maxillary RETRUSION. The retrusion to the maxilla is the cause for your nose 'collapsing' downward. Be careful about pursuing PS for rhino or anything else because you are CLEARLY a candidate for the maxfax surgery to address your maxillary retrusion and the 'collapse' of the nose that results from it.
This resolves to a Lefort 1 to bring your maxilla FORWARD. With that, your nose will straighten out. Also, advancement to the lower jaw would most likely 'go with that' for BIMAX surgery. Prelude to maxfax surgery is time in BRACES to prepare for the movements planned to be made.
FORGET about 'fixing' problem with plastic surgery. You're a maxfax case.