You really need a bit more furniture I would put some fabulous glass art on the window ledge and forget the pillows, to me it really does not look like a comfortable place to sit anyway better to look out. I would get 2 sofas facing eachother and put the little setee in the entry or bedroom use the coffee table between the sofas with a great rug , a shag would be good . I think a mix of 2 very modern sofas with the coffee table would be nice and the reason i suggest shag is it gives texture without pattern to take a way from the beauty of the floor.I would love to see the rest of this house it is WOW