I hate my Veneers, can I get them changed? Will it be harmful for my teeth? (Photo)

Yes, veneers can generally be replaced if you are unhappy with their appearance. However, replacing them is a more involved decision than simply changing a temporary restoration, because the existing veneers need to be carefully removed and the underlying teeth evaluated before a new set is made.
From the photos, it sounds like your concern is primarily that the veneers do not feel like they suit your face or look as natural as you hoped. Before replacing everything, I would first have an experienced cosmetic dentist evaluate whether the problem could be improved with recontouring or polishing. Sometimes relatively small changes to the length, shape, embrasures, or surface texture can make veneers look much softer and more natural without completely redoing them.
If the veneers truly need to be replaced, the amount of risk to the underlying teeth depends largely on how much natural tooth structure was removed during the original treatment and how carefully the veneers are taken off. Every time veneers are replaced, there is some potential for additional tooth reduction, so the goal should always be to preserve as much healthy enamel as possible.
If you decide to redo them, I would strongly recommend choosing a cosmetic dentist with extensive experience in natural-looking veneer cases. Bring photographs of your original smile and examples of the type of smile you prefer. A detailed smile design or temporary mock-up before the final veneers are made can also help you confirm the new shape and style before committing to the final porcelain.
So yes, they can be changed, but I would first explore whether conservative reshaping could solve what you dislike before going through a complete veneer replacement.

Your veneers aren’t really that bad. My initial thought was they were too square and aggressive appearing but your before photo shows that your original teeth were also square. Though they might appear slightly large, your overall smile would look better if you had done 2 more veneers, 1 on each side on the teeth behind your canines. This way, your smile would be broader and brighter. Otherwise, you would need all of them remade and you may not really need to do that. I hope this helps!

hello and thank you for sharingIf you dont like the way your veneers look you can change them with no problem. Depending on how long they were made the especialist would have to determine if its necessary to retouch the surface in case there is cavity to be removed. Normaly its not to aggreisve. Also if you are absolutely sure that you want to get them changed i will recomend that you extend the design 1 or 2 teeth behind the canine to make the arch look a little more narrow. It will change a little the square appearance of your arch. Good luck