Chicken Tikka Masala tastes a bit off

I have made chicken tikka masala recently and it turned out alright. I got the texture and look properly, but, however, the taste seems a bit off. I have used the chicken tikka masala, onions, cihlli powder, heavy cream, tomato puree and orange peppers, as per directions.

However the taste is not satisfying as I had in restaurants. Anyone can suggest anything to improve my taste? Any spices that I can add or something?

Thanks!