There’s power in doing the same thing more than once. The above drawing was my first attempt to draw from a reference, which I normally would throw away. I decided to share it, so I could show you that one can improve an initial drawing or sketch.
If I had stuck with the first one, I would have had problems getting things in the correct proportions, even though I had measured them from the reference before I started sketching. So I decided to scrap it for that very reason.
In the second sketch I tried to capture the bulk of the masses first (hind quarter and head), making sure they were roughly at the correct distance from each other. Only then I added the connecting bits and the appendices (legs, ears).
Even though the second sketch is much better, I feel I could improve the basic proportions even further. Having reference from different angles of the same animal would help as well, though that isn’t possible in most cases with images found on the Internet.