Hi Mike,
Long time no see here
Let me just tell you that your last two works are great and this picture is definitely worth the choice gallery.
I like the composition and the colors. Both of the characters got a very nice expresion in their face and I also have to give you some stars for the fur that you have done :). But mostly I appreciate that feeling of some motion in the picture. It’s the feeling of the big guy chewing the dog-rose and the little one pulling his head back, like if he was saying “dont eat so much you fng lazy bastd”. And of course the flags moving in the light mountain breeze…Pure eye candy 
I can see you was dealing with the mental ray skin shader and i think it works very well. Maybe you could force specular maps more. But other materials in the scene doesn’t work that well imho. I’m mainly talking about the horns witch seems to me like they are only default material with bump and the dog-roses witch seems like they are copper. I am also having some problems with the anatomy of big guys the left arm. Perhaps its too stylised…
I am so glad that you gave us mortals some new picture to look on 
And i cant wait to see what you are cooking for the future
Cheers man