No, there is no law or rule about this; it's up to one's taste. The decorative face is to make the performance of the commandments as beautiful as possible.
Follow the instructions on how to draw a side on elephant, and, if necessary, just flip the way you draw. For a herd of them, start by drawing the elephant...
Staying fit and active is always attractive! I recommend that you eat healthily and exercise for half an hour or more each day, but don't pressure yourself to be perfect.