How can my uneven smile be fixed without braces? (Photos)

u have V shaped arch so best option is aligner treatment. because in yr case change in arch form is must [from V to U]. and that is not possible only with veneer. 

You actually have very pretty teeth--the deficiency is in the sides where your arch form appears too narrow for your lip display width--the term for this is a deficient buccal corridor--the options are to widen the arches orthodontically or to widen the teeth with porcelain or composite. Find a capable cosmetic dentist who can actually show you using digital photos or even better directly in your mouth so you can see the effects and how many teeth will need to be altered to get that big smile that you are looking for --Good luck!

Hi:Best long term option is porcelain veneer if you do not want orthodontic treatment, however it will cost a lot more than $2000.  Bonding can also be an option.Best,Dr. Maddahi