Modify the number of overall number of stars with the Density parameter. By increasing the Roughness value, you can add smaller stars to the pattern. Scale all stars with the Size attribute.

You can cause the star field to be distorted by a noise if you increase the Distortion parameter. This results in a fluid effect like shown in Image 3. An underlying Noise can be added by regulating the value of the same name.

The Amplify manipulates the contrast and intensity of the stars.