Could I have a tip rhinoplasty?

Thank you for your question. From the limited photos that you have provided, it appears that you may benefit from a traditional rhinoplasty. Remember, the nose is a 3-dimensional structure and must be approached as such. This means, although refining the tip is on your wish list, it may not be balanced with the rest of the nose, and therefore you must consider altering other areas.
I recommend meeting with a Board-Certified plastic surgeon experienced in rhinoplasty. They will effectively evaluate you, create a 3D simulation and perform the appropriate procedure.