Can my surgeon add a slight hump back to the bridge of my nose? (photos)

Leave it alone! Your nose looks great and why take a chance. You can use filler to see if u like it 

I agree with many of my colleagues' responses. I would not do a thing for at least one year. What I have found with nasal surgery is that patients are usually a little shocked at the new nose because the old one was with you for so long. It is amazing what time will do with the way you feel about your nose. If after a year you feel the same way then I would look into adding some volume back. You may want to consider the off label use of some filler to see if that is really what you want because it will dissolve over time, but again I would wait a year for even that.

From the posted photo you appear to have a beautiful result. I would suggest that you don't do anything for at least a year from your surgery and see if you still feel the same way. I would also suggest you try some filler first before surgery to see if you truly like having a "hump" back.