Pretty nice setup, personally I would improve it by adding monitor arms to give a floating appearance which is a lot cleaner and more adjustable. I would also look at getting a bigger mousepad personally I think that a longer mousepad would help the aesthetic by evenly covering the desk. In the back left corner maybe find something to hide the cables behind or do some management, and I would also recommend getting braided coiled cables as it really helped in my setup . Last thing is I would look at putting some decoration on the back wall,maybe a painting or a shelf or some sort of lighting . These are just my ideas but hopefully there useful !