Composite veneers touching my upper lip at left side, is it natural? (photo)

After restoration you feel your teeth are big. but its not big in size, infect previously it was small [not perfect anatomy] in size. Your another concern is lip touching teeth one one side. But there is no any cant in teeth, so no need to worry. sometimes that is because of soft tissue [muscle] activity.
your smile is good and perfect

Our face and our teeth are always bilaterally symmetrical naturally. If you feel that your teeth are touching it should be touching similarly on both the sides and not just one. As the teeth have been corrected by composite veneers, and you are new to the length of the corrected teeth, you may perceive it as discomfort. Give some time to yourself. If the problem persists, just get a round of high polishing done.

Hello, according with the picture the composite veneers look so good is not bigger that your face. 

You’re feeling your new composite veneers against your lips because the veneers are now flared out from their original orientation which was slanted inward.  When you dentist restored your smile, he flared your new veneers outward a little so they’re straighter up and down and not slanted in. He did a great job and they’re not too big for your face. They will feel new and ackward but they look nice. 

Hello,It is only a matter of visiting your dentist and indicating your discomfort because in some cases it may be necessary to polish a little if the veneers are composite.of rest it seems to me that your veneers are ok.