Reveling in your new found artistic abilities you start drawing the park. After several minutes you pause to admire your handiwork. It's a perfect sketch of the tranquil scene before you.
Turning the page, you start making another drawing, this time of one of the flowers in the park. You finish drawing the flower and then, in a spirit of whimsy, you draw yourself standing next to the flower. Just as you finish making the final line there's a whoosh of air. Looking around you're astonished to see that everything seems to have suddenly grown to giant size. That is you think so until you see the flower you've been drawing. It's now the same size as you. You've shrunk!