The rules are as follows:
1) Make a drawing in ink (you can do a pencil under-drawing if you want).
2) Post it on tumblr (or Instagram, twitter, facebook, flickr, Pinterest or just pin it on your wall.)
4) Repeat (you can do it daily, like me, or go the half-marathon route and post every other day, or just do the 5K and post once a week. What ever you decide, just be consistent with it. INKtober is about growing and improving and forming positive habits, so the more you’re consistent the better.)
I don't know how often I will participate, but it's a fun challenge, and I certainly enjoyed drawing this one :)