Click the green flag and watch a randomized windy forest. If you're lucky, you might see something more than just trees. Click the stage to show a slider that lets you set the number of trees to generate.
This project uses the "inverted" whirl effect I demonstrate in the following project: https://scratch.mit.edu/projects/545077641/ I also used it in Outdoor Dance Party: https://scratch.mit.edu/projects/546513101/