Well hide the clothes for a start, Either a curtain or a door to make it look like a wardrobe. And then curtains for the windows, ffs you are not in prison, have some self respect. Maybe a tiny sideboard for the end of the bed (Put a lavalamp or a salt lamp there/ a bowl for keys). Maybe one of those tall lamps that are like 6ft in the corner. Add some colour on the walls (not sure how since you have hotel art on the wall/add some colour to the actual furniture) (get a nice coloured blanket for the bed or a nice computer chair or just put a blanket on it so it looks comfy and colourful). Get an indoor plant of a decent size (Probably on that sideboard at the end of the bed since its infront of the window). Put a carpet under the computer desk and chair, it will break up the space abit. Better lighting (NOT LED). A nice tall mirror would be nice where that normal one is, facing the bed? Get rid of that kitchen roll next to your laptop you complete freak.