Nice shots of that Birmese, I was expecting a cross between a Birman and a Burmese.  Looks like you are putting the new camera to good use.  Love the colors and the way you capture the 'expression' of the pup.  My only nitpick is that I don't like the shadow under the chin on the last two...looks more like a dirty chin than a shadow.  Thanks for posting.
How have the larger images affected your workflow?  Is your computer holding up under 21mp images?