No offense guys (Except WWM. This isn't directed to you since you didn't say this) but telling him/her to reference off your work is a bad idea and I agree with DarkCloud, because your sense of anatomy is far from correct too. I'd actually say BB's is better. :/ Again I am not saying that to be mean, but it's true and you shouldn't have told him/her to reference from your work. You should never, ever tell an artist to copy your art, anyone elses or the work of a movie. You are making them fall into bad habits. And it's not even referencing/learning, it's just copying.
To BB, here are some pitures of a BC sitting. I'm unsure of whether or not this character is a Border Collie but judging by what I've seen from you previously, I'm assuming this is the case. I've included photos of other dogs anyway, though.
http://farm1.static.flickr.com/56/16769 ... 3a.jpg?v=0http://cache1.asset-cache.net/xc/575206 ... 0B0D811297http://www.dkimages.com/discover/previe ... 879736.JPGhttp://www.dkimages.com/discover/previe ... 879736.JPGhttp://cache1.asset-cache.net/xc/200359 ... 3E875A785DYou should use those a as reference. I've flipped a few pictures in photoshop and I'm currently redlining your picture and making a few overlayer images. I'll edit this out later.