I'm running out of ideas for warm-ups, so I decided to find another 30 day drawing challenge via Google. The one I chose comes from: http://izzy-draws.deviantart.com/art/30-Day-Drawing-Challenge-Roadmap-480354744
Blue might also make me another one of his famous challenges (like the 30 Day Ice Challenge or 30 Days of Porn) when I've finished this challenge.