No criticism at all as I'm awful at art, so I have respect for anyone who has the creative ability and imagination to do things like this.
As for being awful at art, I remember this: BOY: Can you draw me a horse, Dad? DAD: I'm not very good at drawing. BOY: Go on. DAD: (with resigned tone) All right! BOY WATCHES DAD'S EFFORTS WITH INCREASING PUZZLEMENT. BOY: Why has it got five legs? DAD: Where? BOY: There!!! DAD: That's it's tail. BOY: Give it here, I'm better than that! DAD RETURNS PAPER AS IF JUSTIFIED IN HIS WARNING, BUT CAN'T HELP FEELING A LITTLE HURT.