First, if you want realism, you may want to have the figure standing or maybe work her into sitting on the chair. Her current pose would have the mattress and bed cover showing some sort of sagging, wrinkles, etc. It's one of the hardest things to do in CGI!

Second, I would suggest a different cropping. Would you believe that some artist consider "timing" in their work? When I say timing, it's just another way of saying what elements in your scene get the most attention. As an example, at it's extreme, some artists use DOF (depth of field) to draw practically all the viewer's time to a single element in their scene. How much time do you ever take to view the blurry background in a portrait that used DOF? Usually not much. So now to my point... To me, The rug has no real significance, although it does provide a bit of balance. When I see view your scene, my eyes are naturally drawn to the oval shape the rug pattern creates, yet I don't really see the reward.

The reward, from my perspective (as the viewer), is all the wonderful detail above the rug! That's where I want to spend my time. I've included an example cropping that still lets the rug provide balance, and some framing.

Hope you don't mind my suggetions. And that's all they are, suggestions.. neither right nor wrong. Just food for thought! Btw, your image reminds me a lot of Vermeer's style. Thanks for posting.