If I get my veneers redone will they look less bulky or is it just the structure of my mouth that appears bulky? (photos)

The reason your veneers look bulky is do to the underdeveloped maxilla. When you look at the smile from the front it shows only 6 teeth and the other teeth disappear. If you want to correct the issue with veneers the answer is to do veneers on the bicuspids.

I always Recommend that patients do 4 veneers or 8-10 veneers or it just looks wrong due to canine as cornerstone of mouth.

An even better approach is to use a DNA Appliance to grow the maxilla and create a more natural smile that better supports facial tissues. The side view photo shows the deep nasolabial grooves due insufficient support of soft tissues of your face. Adding 4 veneers will iprove that as well.

I agree that your 8 veneers do in fact appear "bulky". I would suggest having them redone and to add more softness to the smile with more incisal embrasure space with rounded edges and better proportional sizing of the teeth based the true golden proportion principle of the anterior teeth. Hope that helps!

If you redo them they will absolutely look better. I think the porcelain could look prettier and more lifelike. Working with a master ceramist like mine is essential to achieve a beautiful esthetic result.
I'd be glad to do it for you if you would like.