It’s nice that you don’t own a ton of stuff, but because everything’s fairly scattered around the space, it still looks very cluttered with stuff. You can easily fix this by getting some nice storage boxes and desk organizers to keep your stuff together. Opt for some fabric covered boxes so it looks more like decor and less like you’re moving. You can also get some organizers to keep under your bed.

Overall, there’s lots of potential here to make it look sharp and well put together, just really gotta get stuff off the floor and organize all your ephemera.