The dentist told me my veneers are fine, my lip covers my veneers and they're not longer on one side, how do they look? (Photos)

Your veneers look fine, but the smile is canted, usually that can be due to your bite and occlusion.
On the second note your left side the back teeth go in, causing asymmetry of right and left, your right side could have been also more fuller for a more fuller smile!
Having said that the only way to achieve that is to redo the back veneers, for a fuller smile, and possibly cosmetic contouring of your veneers due to the slight cant.

The right posterior teeth give insufficient lip and cheep support giving poor look.I would suggest doing temporary composite build-ups, not bonded on teeth 4 and 5 to support your lip.  No anesthetic or grinding needed.  Evaluate cosmetics with composite build-ups and if happy consider veneers.  There may be slight slant because case followed existing teeth.  can be addressed seperately by minimal polishing (if necessary)

There are two items at play here - your veneers (and teeth) and your lips. Ideally you need to post photos of you smiling to see how your lip pulls and extends when you smile lightly and also extensively.
Many people damage their lips when they are younger leaving scar tissue in critical areas. The result as you get older and fruther collagen is naturally lost, is a progressively 'tighter-lipped' look.
Send additional photos and the extent of the influence of your teeth and their relative bulk vs your lips will be clearer. 
Hope this has been helpful and good luck
Kind regards
Thomas Dey, BDS, MSc

Hi:The height of the veneers look fine, however the lip does not look like it is moving correctly.Best,Dr. Maddahi

Dear 092370, I'm not exactly sure what you mean by 'lopsided'. The photographs you posted do not demonstrate the whole story. If you were to draw a line along the edges of your teeth, it should be parallel to a line through your pupils, and your photos do not show your eyes. However even this rule of thumb is not always applicable because our teeth serve a functional purpose, and modifying them for aesthetic reasons can interfere with function which is something that nature will not tolerate. If you change your function to something out of harmony with the muscles, bones and joints, the muscles will aggressively grind on your teeth during the night; so be careful with aesthetic changes. I think your veneers look very good, and to get your teeth perfectly in balance with the lips is often not possible because rarely are faces symmetrical. However if you entertained the idea of an improvement, one change that you might consider would be to make the veneers symmetrical to one another meaning make the two front teeth (central incisors) the same height, the next teeth (lateral incisors) the same height to each other and then the cuspids the same height as one another. The gum line and the chewing edges of the central incisors and the cuspids should be the same level, but the lateral incisors should be slightly shorter in both directions, top and bottom. This is perceived as ideal tooth proportions. The lateral incisors should be about 80% the width of the central incisors and the cuspids should be around 90% the width of the centrals. The width of one of your central incisors should be somewhere between 1/14 and 1/15 the width of your face measured at the cheek bones. When I make veneers I consider all of these parameters and more. The question is, "How good is good enough?"  Dr. Neal