How can I improve my porcelain veneers on my lateral incisors?

Hey! Firstly, your smile is beautiful. I can see how the laterals might feel larger than you wanted them to be but they actually look good when looking at overall. What really matters is how you feel about them and what you want. Luckily, it isn to impossible to replace old veneers. I would tell your next dentist that you want a master ceramist to plan the lateral incisors and have them slightly smaller than what you have. I would see if you can wear them temporarily to make sure you like them before cementing permanently. Hope that helps!