Do I have a botched nose? (photos)
Doctor Answers 2
Mild asymmetry is normal
Asymmetry 3 weeks after revision rhinoplasty
Generally, at three weeks one would still be experiencing swelling. Although your picture shows some asymmetry, without knowing about his procedure, i.e graftst, it would be difficult for me to fully evaluate.
I would recommend that you have continued follow up with your surgeon, and present these concerns to them.