2010 Original link: [link]
2012 Original link: [link]
Please take the time to view the full image, shrinking it made it lose detail.
Info: The first image was done with HB pencil (Maybe 2B as well, I'm not sure) and an eraser of course. No references.
The second image has changed quite a bit from the first. I changed the legs to be more "natural" and the head position as well. The anatomy still isn't 100% as I feel the body is too long and the back legs look slightly long. This one was done in GIMP 2.0 and with a wacom/bamboo tablet.
Thanks for looking, and after actually sitting back and looking at this I feel I've improved drastically. This was a lot of fun to do. =]