Will uneven nostrils and leaning of the nose after a rhinoplasty correct itself?

I read your concern and reviewed the photos you posted. Your photos do not appear to demonstrate significant nostril asymmetry, and your nose does not appear to lean off center. You should address your concerns with your surgeon or consider getting a second opinion from a certified, reputable rhinoplasty specialist near you. You can check abfprs.org to find a list of local certified facial plastic surgeons.

I hope this is helpful for you.

Regards from NJ.

It’s not unusual for patients to have small amounts of nasal asymmetry following rhinoplasty surgery.  In the vast majority of cases, nostril asymmetry is related to pre-operative asymmetry which may have been unrecognized. 
            Although your pictures suggest some minor asymmetry, most surgeons and patients would consider this an excellent result.  It’s important to be patient, your nostril asymmetry may become even less noticeable as your swelling resolves.  In the interim, it’s important to maintain good communication with your plastic surgeon.

Unfortunately, nostril asymmetry is a known risk of rhinoplasty.  Your nostrils are a bit asymmetric but it's pretty minor in my opinion.  Have you discussed this with your surgeon?  Depending on what techniques were used, there may be some improvement possible with a minor revision.  Prior to that, there may be some improvement available via stenting the smaller nostril open at night or by performing exercises to stretch the nostril in certain ways.  It's tough to tell without examining you if that is a good option.  Good luck.