Looks pretty dark in there, but maybe some "plants" to lighten things up? https://www.amazon.com/dp/B08H9HTRVD/ref=cm_sw_r_pi_dp_x_Bq6QFbHWE5KMW?k=fake+plants+decor+by+modern+planter

As a guest I'd like to have plants, but they can be some serious upkeep. I got some of these recently and they work great for our second bedroom.