The Hall of African Mammals reigns supreme at AMNH (imo). There's a majestic herd of elephants (one of the few open animal displays at the museum), beautifully bizarre okapi and even a full-sized giraffe! While it's tough to pick whom to draw from such a rich variety, I usually go with my gut reaction. I make eye-contact with the subject to see if we have a connection.
On that particular day, it happened to be a drooling water buffalo. (Drool omitted from drawing.)
When it comes to rendering short haired animals, blending colors seems to capture their essence more accurately than using strokes. It's possible that my enthusiasm for this new technique made me over-blend? I do like how his magnificent horns turned out though.