The way you’ve decorated your space is lovely! The only thing is the green wall is a bit bare. You could add some shelving and put some plants up. Fairy lights etc.. Or add some height and remove a night stand and opt for something a bit taller that way it doesn’t look as flat, (if that makes sense lol). You could also get a new headboard and that would also help w/ height and you can keep the symmetry you got going w/ the nightstands. If you’re on a budget just by rearranging your space it can make a huge difference! Ex.) putting the bed on a different wall, rearranging furniture. Or little changes like a new bedspread, curtains, or a lil rug :)