Dr. Khaira,
OH no, I would defintely have the veneers removed first then the composite. It is so rare because all i hear is people removing porcelain and then getting more porcelain veneers. Now that you have said people do do composite over porcelain(after porcelain removed) makes me feel like it is an option and it is not impossible. I am sorry to make it sound like composite over veneers. I should of said composite to replace porcelain. Is there anything in particular besides before and after photos? What would be the most important aspect in finding a composite specialist? Ask a lot of questions and see his experience.
MIke