I would simply install a set of clean lined shades to all the windows. I agree with Granite-Girl that the arch doesn't necessarily need to have a covering unless the light will bother you. Most stores will have shade options for this type of window. If you'd like to make the room feel a...
A great way to make the most of a small space is to really take advantage of the vertical space available. For example replacing a horizontal storage unit with a vertical unit can open up the usable floor space and create a larger area for circulation.
Another idea to consider is built-in...