Unhappy with veneers, can't pinpoint exactly what it is.

Your concerns about the appearance of your porcelain crowns and veneers, especially regarding their opacity and size, are valid. It's quite common in cosmetic dentistry to go through a phase of adjustment and fine-tuning to achieve the desired natural look.
Opacity can be a significant factor in how natural your teeth appear. If the porcelain is too opaque, it might lack the subtle translucency of natural teeth, leading to an unnatural look. Discussing this with your dentist is important, as adjustments in the color and translucency of the porcelain can be made.
Regarding the size and shape, specifically your concern about the front teeth being too wide, reshaping them to be narrower can indeed help in achieving a more natural appearance. Your preference for the temporary versions can be a valuable guide for your dentist to understand what you're looking for in the final outcome.
Remember, it's essential that you feel confident and satisfied with your dental work. Your dentist can work with you to ensure the final restorations meet your expectations, drawing from your feedback about the temporary teeth. It's also worth noting that it sometimes takes a bit of time to get used to new dental restorations, so give yourself some time to adjust. However, if your concerns persist, a further consultation with your dentist is recommended to explore the necessary adjustments.

To comment with a professional eye, the permanent teeth made by your doctor have ideal proportions and look anatomically appropriate. However, if you are not satisfied with the appearance and forms, instead of abrasions, the restorations should be cut out and then reproduced.By copying a temporary tooth design you like with devices called intraoral scanners, your permanent teeth can be made accordingly.