It's quite attractive Daniella. I think however that I might add one more object on top of the piano (a dish, some sheet music. some flowers in a vase, a photo in an old frame, etc.) just to give a better sense of the cozy space. It might help the sleeping dog seem more snuggled into the concert.
Thanks a lot Rob, I'll follow your kind suggestion (and perhaps, I'll add something on the left, just to balance the whole)!