Can anything be done about my horrible looking crown? (photo)

I have medicaid and the dentist where I had it done at basically just cemented it in without having me look at it before. The tech who even did my impressions had to do them 4 or 5 times. It's to big, it does not fit right not to mention the color is way off. I don't even show my teeth when I smile or I just cover my mouth.