Styling my Guest Bedroom... Any ideas?

I am still in the process of decorating our new home and you may have seen the photos of my guest bedroom which I painted white. I am trying to finish decorating and styling it and found these beautiful images above from the House to Home website. My guest bedroom has a metal frame bed, white walls and French style furniture. I would love some advise from you all on how to style it. I am uncertain what type of images/photos to hang on the walls. I am thinking of buying a roman blind for the window. Here are a few images of it below. I think a white duvet cover would look the nicest with a floral throw for the bed. The Cath Kidston duvet cover in the top right photo is a double bed size and too small for the King size bed. Any suggestions or images of how I could style this room?