Why is my smile so ugly? What can I do to improve it? (Photo)

HI:From your photo I see a couple of issues that may contribute to you not being happy with your smile first, could be color and second could be the narrow arch. Both of these issues can easily be handled with porcelain veneers or whitening to start,Best,Dr. Maddahi

I would consider straightening your teeth either with braces or clear aligners. Also, I would suggest whitening your teeth. I think you will notice a great improvement with those two things. If you go the clear aligner route (Invisalgin, etc) you can also use those trays to whiten while you straighten your teeth.

Based on the photos, you appear to be a good candidate for porcelain veneers to improve the shape, color, and alignment of your teeth. Seek an experienced cosmetic dentist who has great photos and reviews.