I. These are the circles, try to click on them!

II. These are the rectangles, try to move your mouse on the outermost rectangle.

III. These are the lines

IV. This is the path, it looks like a flower❀
Press on (not click) the blue butterfly below the flower, and it will fly to the flower.

V. This is the WindMill, click the button to rotate it!
You can try to click the button again to make it rotate faster.