1. Create a new layer and use the "Gradient" tool to create the background, as shown below:
2. Select the "Polygon Tool", Sides: 5 Radius: 5 cm Indent Side Basis: 50% Color: #ffdf70 Also check the "Smooth Corners" and "Star" options.
3. Create a new layer above the background layer and draw a star, as shown in the picture below.
4. Set the blending options of the star layer as follows:
Drop shadow and inner shadow settings
Outer glow, inner glow, bevel and embossing (default settings are sufficient for contour lines)
5. After the setting is completed, you will get a star like this: