Great shot, marlof - love his or her expression and the cat pillow/blanket being their makes it!
I wonder what you'd think about bringing down the top to just above her raised paw, making it almost a square composition? Normally, I wouldn't be so bold as to suggest a crop, but I think this is an excellent image and would be made even stronger by cropping in just that much. Naturally, it's up to you. There's a famous photo that this reminds me of... If I can find it, I will.. It's not of a dog, it's of a woman...a sort of odalisque, if you will, albeit dressed in black...a well known old photo.