And here is the final version of the sketch-a-day project! Ack, have I really not posted an update since Feb. 7? I meant to do more WiP posts for this!
It was really interesting to do a whole drawing one isolated square at a time -- definitely good practice for my drawing and visualization skills. There are a couple places where my mental plan got a little off track, but overall I'm pretty happy with it, and it was very relaxing to sit down at the end of the day and cross-hatch. It felt something like putting together a jigsaw puzzle.
If you'd like to try it yourself, the March template is here: http://darthneko.deviantart.com/art/