Veneers look off but can’t pinpoint what… (Photo)

Hello, I’m thinking of going in to get my veneers re done since I need to replace the ones in the very back since they fell off. When I originally got them I thought they looked great but the longer I look at them - something seems off? Seems my canines are different shapes and my lateral incisors are different sizes? Not sure if that was done on purpose to create a more natural look Vs a perfect denture look. I could be over thinking it but wanted some thoughts as well. Thank you!