I posted this in my scraps on dA and fA, but forgot to post it on Weasyl too! The tone paper drawing I did of Peter hearing his stomach growl https://www.weasyl.com/~guineapigdan/submissions/1924804/peter-s-rumbly-tummy-on-tone-paper was inspired by this sketch I drew that I never got around to coloring. I was thinking of using this old sketch as the basis for a new stomach growling animation, but I wasn't happy with how it looked. Also, it's difficult to try and draw front view symmetrical drawings, which is why in my pastel drawing I did a 3/4 angle view instead.