How to give two points if the player destroys the Blue Skull?

Hello! I am trying to make an AR game, where the player has to shoot some skulls, and I created a game object which it is a Blue Skull

Right now the player will get +1 to his score if they destroy either a white skull or blue skull.

How can I make that the player can get +2 to his score?

I have this script so far:

  public void shoot() {
        RaycastHit hit;

        if(Physics.Raycast(arCamera.transform.position, arCamera.transform.forward, out hit)) {
            if (hit.transform.name == "whiteSkull(Clone)" || hit.transform.name == "blueSkull(Clone)" ; { //Esto es para especificar que va a pasar si el jugador "dispara" contra cierto game object del juego
                Destroy(hit.transform.gameObject);

                Instantiate(smoke, hit.point, Quaternion.LookRotation(hit.normal));
                AddScore();
            }

           
        }
    }

    void AddScore()
    {
        Score++;
        scoreText.text = Score.ToString();
    }

One of the solutions that I have been thinking is to separate the code like this:

        if(Physics.Raycast(arCamera.transform.position, arCamera.transform.forward, out hit)) {
            if (hit.transform.name == "whiteSkull(Clone)" || hit.transform.name == "blueSkull(Clone)"  || hit.transform.name == "ballon2(Clone)"); { //Esto es para especificar que va a pasar si el jugador "dispara" contra cierto game object del juego
                Destroy(hit.transform.gameObject);

                Instantiate(smoke, hit.point, Quaternion.LookRotation(hit.normal));
                AddScore();
            }


            if (hit.transform.name == "blueSkull(Clone)"); { //Esto es para especificar que va a pasar si el jugador "dispara" contra cierto game object del juego
                Destroy(hit.transform.gameObject);

                Instantiate(smoke, hit.point, Quaternion.LookRotation(hit.normal));
                AddScore();
            }


        }
    }

    void AddScore()
    {
        Score++;
        scoreText.text = Score.ToString();
    }

But I do not have any idea on how to make that blue skull to give double points.

You should have a script on your skulls that stores a point value.
Then, when you hit the skull, grab the script using GetComponent and get the point value.
Next, modify your AddScore method to take an int and pass that point value to the AddScore(int points) method.
Finally, you add that point value to Score using Score+= points;

This will allow you to have flexibility to add other color skulls with different point values also.