If You Had This Space? What Would You Do With It ?

So if you had this space? What would you do with it?

I want to replace the curtains. I need a office chair and a printer caddy. I want to get 2 cozy chairs, a little table or stand and lamp for a reading nook area. (That’s behind me) but I have no idea what to do with the wall behind the desk and the Christmas decor will come off the chandelier.

I am so not good at decorating so any and all suggestions would be greatly appreciated. . Leave any picture ideas in the comments. I like simple clean lines and the room itself is a light turquoise color. TIA!!