You could hang drapes so the window looks centred (i.e. more panels on one side). Any photos?

I could see a set of three pictures with white or silver frames and anything really that just incorporates your room's color. Make sure they are large enough to fill most of the width. You may also want to add more pillows and large shams type pillows for a more interesting and complete look. Your lamps are a bit too small (see lamps' proportions in pictures). Hope this helps.

I saw the neutral tones with beige/peach accents and thought -- color! I did a screen capture and put in my painting, Child of Eden, because the greens interacted so well with the room. (Not sure about the size ratio -- the framed picture is 30 x 26.) As a fine artist, I tell my clients -- when you choose artwork for your home, the most important thing to look for is what you like, and what makes you smile -- and it will fit into any color scheme you choose, simply because you love it. When we start over-focusing on matching the color scheme, we risk buying something for the color scheme first, and our liking it second. Both you, and the artwork in your home, deserve better than that.

First of all, you should change the door swing from Left hand to Right hand, so you walk into a room not the wall. Put the bed where the dresser is now and the dresser on the other wall. Other then that there is not much room to do anything, or replace the window, insulate a wall and leave everything as is. Good luck