Woohoo I asked a right question!
You've imitated the Gravity Falls style really well. :o
I guess you could teach the basics one needs to learn for character creation?
Or, some cool tips/techniques etc. related to drawing that you've gathered from being in the animation industry for so long!
Or even the 'how to imitate styles' seems cool. But we're spoiled for choice there - exactly which cartoon would be used for the tutorial? :P
Thank you for having an interest in taking your time out and sharing your valuable knowledge with us!