Unhappy with new crowns. Can I get a refund or try getting them redone? (Photos)

I always advise never agree to cementation unless you are happy with the esthetics.  
Esthetics are easy to correct prior to cementation.
Most dentists really want their patients happy and what you saw as rude was probably just a defensive response from your dentist.  He did not probably mean to be either rude or disrespectful but he may have been reacting to your tone.
Talk to a team member prior to your visit so she can "prime" the doctor for your visit.
That said, you are pulling your lip up in an unnatural position in photos with crowns compared to before photos.  The gummy smile is innate not from the crowns.  They crowns do appear opaque but the primary problem is that you did six teeth.  Ideally when improving a smile the rule is 4 teeth or 8, 10 teeth.  Six teeth almost always look unnatural if there is any color change, especially whitening.  
Ideally I would have started with a DNA Appliance to widen your narrow mouth and eliminate dark buccal corridors and create a full wide smile which makes an easier transition from canine to bicuspid.  OR do a 10 tooth case .  The shift from Canine to bicuspid looks bad.
Patients desire lowest cost crowns but dental lab costs can be as little as $50 for a crown to several hundreds of dollars.  I sometimes lose patients in my practice because "fees are high" but I pay high fees for lab work.  I would rather not do some work then have a less than desirable result.  

Hi:It's is best to first express your concern to your dentist before contacting the insurance.Best,Dr. Maddahi

I agree with your unhappiness with your crowns. My issue with this type of situation is that your dentist made these crowns and I can't imagine thought they were bad. So how can he redo them and make them look like teeth? It takes lots of various components done very well in order to make front crowns look like natural teeth. Your crowns cannot be reshaped nor could they have been reshaped prior to cementing them. I would ask him to remake them and see what his reaction is. Based on his reaction, you may need to contact the local dental society for direction. Hopefully he will understand your concerns and treat you with the respect you deserve. I hope this helps!

yes veneers look unaesthetic and fake, also canines are very big in size. sorry but u can't do anything with these veneers. redone is the only option after cementation . in my practice, i always do wax-up and before cementation show  veneers to patient for final check . 

Whenever I do a smile makeover with crowns or veneers, the patient has opportunities to evaluate how the final work will look. We invite our patients into the office to view the diagnostic wax-up, this is made by the dental laboratory with our direction from consultation with the patient, and it gives us a chance to correct any shape/size/position issues before we treat. The next opportunity is with the Trial Smile, which are the temporary crowns after the teeth have been adjusted, and while we wait for the dental laboratory to create the porcelain work. Our patients can then evaluate shape/size/position of the teeth in the mouth, adjustments can be made to suit each patient, and those changes communicated to the laboratory before the crowns are made. This way, when our patient comes in for the try in day, the only "unknown" would be the color. I'm guessing none of this wasn't done in your case?I'm not sure why you chose to treat only six teeth, but when changing length of teeth it is really necessary to change all the teeth seen in your smile, at least on the top teeth. For you, that would be 8-10 teeth. Doing so prevents anyone from seeing the transition between long teeth and short teeth, as we can in your photos. My "guess" on having these crowns placed Ian that you either weren't shown what they looked like at the try in, or you were and were "too nice" to not allow them to be placed, but it appears more adjustment could have been done to shape, color, and position of the teeth.I would never want my patient to be unhappy with work I've done, and in my office I am always available to listen and to redo work if needed. Perhaps scheduling a consultation with your dentist to calmly discuss your concerns would be a good start. Ask for your dental laboratory to provide a diagnostic waxup for your approval, and again your temporaries should be made from that wax up so you have a chance to try them out. You also need to be very realistic about your expectations (for example, the shape of your eye teeth can be improved with laser gum surgery to move the gumline, but that will likely add cost to your treatment). I wouldn't expect any type of refund from your insurance, and in fact I'd be surprised to hear they paid anything for an "esthetic change". Good luck!