My upper teeth are big w/ a gap. Went through braces but am not happy and a tooth is broken. How can I correct my smile? (photo)

orthodontic treatment is for teeth alignment and cosmetic dental treatments are for smile improvement. basic issue is with teeth shape. best option in such condition is porcelain veneers. it will change smile and whole personality. visit cosmetic dentist. 

Also looks like your frontal teeth are a little inclined. Seems you need a little work of Ortho and then fix the tooth broken.
We are at Playa del Carmen, Mexico. Fun, vacation and dental treatment :)