How to balance this window?

Hi all, I need help! I plan to get a large piece of art to go in the center of the wall above the bed, but how do I balance out the window on the right?

I intend to get some nice curtains. Is it weird if I put some on the left and pretend there’s a window there? Do I add different artwork?

The room doesn’t have to be perfectly symmetrical, but the imbalance really bothers me.

Any help would be appreciated as I figure out how to decorate this blank canvas of a bedroom.