any tips to make my setup look cleaner/better?

It's already clean as for better, maybe a second monitor.

Where you get that desk?

Rainbow 🌈 and Central American hotel curtains don’t go w Diablo desk imo. Change the colors of what u can🍺👍🏻

Looks very good! What wallpaper is that from ? It's good the way it is, but you want to add something, then maybe a figure beside the monitor of a character from a show/seris you like.

Sweet little set up... That's already pretty damn clean. If I were to make a suggestion?.. Don't laugh... Change curtains. maybe some simple lighting... don't go overboard with the RGB

Clean

2nd monitor for sure, idk how else you can make this setup any "cleaner"

To look cleaner, I'd go with a plain black desk.

Put it against a wall instead of your curtains.

Plant life. 🪴

Match color on all rgb.

That rug clean. Where do I get one

Change your rig to a raspberry pi, it'll look much less noisy and bulky 🥁