I have a rounded nose, and round nostrils. I would like to know what can be done to my nose. (Photo)

After reviewing your photos, I feel that you may be better suited for a rhinoplasty than a non-surgical option.  Although fillers can increase tip projection, a surgical rhinoplasty is required to narrow and refine the tip.  I recommend seeking out a Board-Certified plastic or facial surgeon who will accurately examine your nose, create a simulation that will show you what your nose COULD look like after surgery, and formulate a plan tailored to your wishes. Good luck!

The round and bulbous tip is addressed with a tip rhinoplasty which includes suture techniques applied to the lower lateral cartilages of the nasal tip area. Thick skin will be an impediment to seeing a very refined result. For more information and diagrams about the technique, please see the link below