Unhappy with permanent bridge? (photo)

The bulky porcelain can be adjusted a little and be polished, see if that would help! It is not an easy job to do! There is no room for mistakes, and the glaze of the adjusted porcelain will not be exactly the same as the original. If that does not work possibly prepare a veneer to be placed over the porcelain! Again depends on what kind or type of porcelain used?Last option unfortunately is redo!As far as tightness, give it a week, and see if you are ok with that.Best of luck!

I'm not sure why you had to wait for three months for your final bridge, but be that as it may, you should never accept something you don't like. Most doctors will always have the patient decide whether they like it or not. Prior to delivery, anything can be adjusted. You can adjust some porcelain, but if you look at the picture they all look symmetrical in that they appear to follow the same thickness, and what you do to one, you have to do to all. 
The tightness may be from the contact on an adjacent tooth, which could be adjusted. However, if the tightness is due to the bridge not fitting easily, you may have a problem down the road with even a fracture of a tooth. The bridge, from my perspective, does not look unaesthetic, but I would need to evaluate how it looks in comparison with the rest of your mouth and face.

The dentist still may be able to adjust the porcelain without taking the bridge out and redoing it completely.  Also, he could adjust the contact with the other tooth that you feel is too tight.  Cosmetic dentists do this often, called post insertion porcelain recontouring.

Before a dentist permanently cements a bridge he will usually try it in and ask the patient to evaluate it, accepting the restoration, and giving permission to permanently cement it into place.  Did your dentist do any of these things?

Did you have the opportunity to see the bridge before he cemented the bridge into place?

Did you accept the bridge?

Did you give the dentist permission to cement the bridge into place?

I do agree with you that the teeth on the bridge looks a little bulky.  I recommend you see if he can/will try to recontour it before going to all the trouble and expense of remaking the bridge completely from start to finish.