I can think of two things off the top of my head that seems off =D Go me.
Her sholder, the one we see, seems too UP there. Taking from where you did the line, her sholder is resting above her ear - which makes her breats/body seem off and just means it isn't resting on the bed at all but up in the air.
This may just be me but her head seems a little big for the body.. or maybe the face part of it - or something else but something seems a little off.
However:
The pose is cool, the dog is bloody fantastic, the way you done the hair shading is pretty neat. I'll say this though: Don't be afraid to make the beds lines of the folds go more then a cm. They can stretch all across the ebd so do't be afraid to try and do it.
Oh yeah: Its a pretty damn sexy picture to.
Kudos on the hair. <p><div style="text-align:center">

</div>
<div style="text-align:center">Cowgirl fanboy - Barbarian Ninja - Expert Mouse Catcher - Holder of the
Iron Glasses Of Doom!</div></p>