What Type of Teeth Surgery Do I Need? (photo)

My teeth are too small and my gums over power them. I would like to know the surgery I would need to improve my smile. Also the cost. I live I Connecticut, but am willing to travel to New York (Manhattan). I have pictures of me smiling (when not as much gum is showing) My other pictures where my smile is more real(where the gums show) That tends to happen when I laugh