my idea was to try and get a suddle change from the dark to the window, so the more darkness, the more suddelty. also, i was aiming for an interesting object to be outside the window. i was trying to get color and texture to contrast the rest of the photo.
Maybe putting the window AWAY from the dead center of the image would have more of this subtle (this is how it's spelled) change from dark to the window.
suddle and subtle are two different words... are they not? anyway, it's a little too much black. but i see what you are trying to do, because the curtains are dark, but the window makes them grayish so it sort of transitions into the color.