It is useful to feel comfortable with the basic commands
The challenge is to produce elegant solutions to the problem. Elegance here implies simplicity. The focus is on rhombi. For example :
REPEAT 2 [ FD 40 RT 60 FD 40 RT 120]
The design below is part of tile seen in a shop - sadly now closed, at King's Cross in London. Can you generate it in as elegant a fashion as possible?