In the Super Snowman Project, we are asked to add more, which is vague.  The instructions also suggest

give the snowman a face, color it crazy colors, make the snowman look like you, make the snowman look like a hybrid animal, give the snowman clothing, make a snowman - whatever sounds the most fun to you. 

and the "Tip" suggests several advanced shapes you could use.

Without seeing your code, it's difficult to advise, but I would say that if you add several color functions (`fill()`, `noFill()`, `stroke()`, `background()`) and several shapes (maybe one advanced shape), that should satisfy the requirements.