Temporary crowns look awful. Will porceline crowns look perfect? (photos)

I recently decided to get porceline crowns on my front teeth. I didn't like he way my tooth looked as it was bonded from a accident when I was young. so I went to a dentist and explained this to him. He suggested that I crown both Of my front teeth since I am so particular that way they will be symmetrical. When he put the temporaries on he just molded them in office out of a composite material. They look absolutely awful.I am a perfectionist about my teeth so I am very nervous