Out of all my drawings, spanning 40+ years and using different mediums ranging from pencils to ballpoints to coloured pencils to markers to computers, this is the only one that I've ever liked enough to frame and put on the wall:

Fun fact: This would have been around the time that I discovered that you can draw with an eraser, too. The snow, the white on the deer, and the white in that birch tree behind the deer were all achieved by using an eraser. This was also when I discovered that you can achieve a nice "mist" or "fog" effect by firmly rubbing the whole graphite drawing with a piece of toilet paper wadded up (and then erase the parts you want to be white).
One of my more recent favourite drawing would be the one of Daecon playing trains - this was an experiment in using a computer to draw but limiting myself to a single colour and tool to mimic ballpoint pen:
