According to Facebook, I posted this drawing of the Crow Summer cast online on April 10, 2013. While this isn't the earliest drawing I have of the characters (somewhere I've got a hard copy of the VERY FIRST drawing I ever drew of Nina), the day I first thought up the story was Friday, January 11, 2013. (Yeah, I wrote it in my journal.) So the characters were, at most, only about four months old when I drew this. 
Compare/contrast my most recent Twitter sketches of the gang, and you'll see…. they haven't really changed that much. Except Reese, who is pretty much the same in personality but who was ORIGINALLY a 16yo stoner and is now an innocent (??) tween.
Also, this comic is actually (sort of?) a reboot— as in, I've drawn it before, but this is the first time I started drawing it with the intent to see it through to the end. The other tries were all just testing the water, feeling out how I wanted the pacing and art to work. Here's part of my first pass at it:
(HEHE, THAT ART IS SO BIZARRE)
So yeah. It's been a really good, fun project for like… three or four years now.