1. Create a new document, fill it with green, create a new layer, select the custom shape tool, load the five-pointed star shape that comes with the system, draw the shape and fill it with white
2. Ctrl+T to tilt at some angles
3. We use these three colors as our tones, which are light, medium and dark tones respectively.
4. Create a new layer on the background layer, use the Lasso tool to outline the selection, and fill it with the bright tone in the picture above.