Concern about nasal sutures.
The sutures plastic surgeons put inside the nose are designed to dissolve after approximately 1 week, so noticing them coming out wouldn't be an issue. Check with your surgeon to be sure the incisions are healing appropriately and follow your surgeons advice about care for the area.
Internal nasal sutures at 7 days post-op
The internal nasal sutures placed during rhinoplasty usually dissolve within a week or so. If concerned, touch base with your surgeon.
Following your surgeon's post-op care instructions
Following up closely with your surgeon will give you the best chance for optimal healing. It's hard to make a comment based on one picture of your nose without knowing what it looked like pre-op and what was done during surgery. The only surgeon to have that knowledge is the surgeon who performed your operation. If you're surgeon does not seem worried, then you likely do not have to be either.