I'm not even qualified to be an amateur interior decorator, but I'll add my thoughts.
If it's wood flooring and in decent nick, don't bother with a rug. Small space doesn't need something making it look smaller. Of course, I would make an exception if the rug was really something special.
I would move the couch down, put the chair in the corner by the window with the stool next to it.
No bubble lamp. It's a cool piece, but not for a small space.
Coffee table is too...