I wouldn't worry too much about proportions right now, especially in the 30second exercises. For me 30 seconds was too fast in the beginning. My brain needed some processing time to even see the gesture ;). So I started with 60seconds. Maybe that helps you too. Also, I found the following steps helpful: Draw at the same time as Stan - Compare - Watch him draw - Draw at the same time again. And also just have fun with it :). Hope that helps.