This was a challenging sketch for a few reasons. One is the subject matter itself: a wound in the bark of this tree. There was just so much going on with that cool, plated texture that it was easy to lost my place. There was also a nice colony of mosses and lichens that I didn’t represent well. The big challenge, though, was that I opted to draw this one while standing (it faced a road/high foot traffic area, so it wouldn’t have been great to sit and get comfortable. Standing there was questionable enough). I think I was starting to get the general vibe, if not an accurate representation, but all my joints asked me to stop and move on to something else.