(the same parameters)
Blending Options>Drop Shadow



The small stars (the green one and the brown one) have also the equal parameters:
Blending Options>Drop Shadow





Select the same Custom Shape Tool (U) to represent the stars with the openings (the layer of the lowest yellow star should be placed lower than the yellow menu’s button).





The layer’s parameters for the stars containing the openings are equal for all of them:
Blending Options>Drop Shadow