Difference between Zoro and Sanji

D: Oda sensei. I am currently faced with a big problem!!! My family just can’t understand the difference between Zoro and Sanji!!! 

So that even people like them can understand, I’d like to request you to draw some impactful illustrations differentiating the two in a way that they will never forget again.

 

O: This is Zoro. This is Sanji. Zoro. Sanji. Zoro. Sanji. Zoro. Sanji. Zoro. Sanji. Zoro. Sanji.