Can I use veneer only for my bunny teeth, or orthodontics is the best way? (Photo)

Hi:
From the photo you posted, the direction of the root of the two front teeth and the position of the your right lateral (next to the front teeth) is not correct.  Veneers can help to change the size of the teeth however it will not help with the direction of the roots.  If you only want to do 2 veneers, I would suggest to get Invisalign to move the teeth and the roots into a good position.
Best,
Dr. Maddahi

both options are good, there are several differences and also the results can also change if you go for braces , at the end you will have straight teeth but same color and shape.and can take up to 1 year or more.and if you do veneers you will be able to change shape, size and even color.