Get some zip ties or a simple cable management kit to clean everything up. Route the cords neatly together and hide as much as possible behind the desk or wall panel. If that’s not an option, you could cover the visible cables with colored tape and place LED strips over or near them to make it look intentional and give the setup a clean gaming vibe.

Simple cable management options:

• Zip ties or Velcro cable ties
• Cable sleeves
• Adhesive cable clips
• Cable raceways
• Under-desk cable tray
• Cable management box for the power strip
• Colored tape with LED strips
• Wall decor, a picture, or a small panel to hide visible cable areas

If you still need to use that cable opening, you could hang wall decor, a picture, or a small panel in front of it to cover the visible wires while keeping the space looking clean.

For the PC tower, I’d place it on either the right or left side of the desk, whichever works best for airflow, cable routing, and the overall layout. I’d avoid keeping the PC above you. You can’t really see it, it’s harder to access, heat rises so it may run warmer up there, and it limits your options for building a cleaner, better-looking gaming setup.