I like your vision, and your technique. I think you did a nice job, but do you see the front right leg, it sorts looks misshapen, but the rest of the art is so good you don't even notice it until 5 minutes later.I think you got the body right, the colors are good and it's overall, a good piece of artwork. I don't know if you worked hard on or not, but it look like you did. You want that in art, you want to exaggerate the piece, make it dramatic. It really draws in a crowd, good job.
The right foreleg, or the left (the one that's curled up)? I had trouble getting it to look right (the strokes in that area were a little blurry in the reference screenshot), and I'm still not really happy with it. Might tweak it some more tomorrow and see if I can make it look more natural.
Thanks for the feedback!