I record my vocals and sometimes a guitar track, if I need to, other than that I produce music in the box.
I am centered on a wall, as far away from it as I can go, which is only about 18 inches because the desk is L shaped, though I cropped the photo.
When I sit at the desk, my listening position forms a nearly-equilateral triangle with those monitors.
This space is completely untreated. As I sit at the desk, on the wall behind me are the entrance door left and a door to a closet right. The left side wall is unbroken. The right side wall has a window about 2/3 of the way back.
So it's not an ideal space by any stretch in terms of acoustics, but that's the way it is here at Spare Room Studios, where headphones are readily available:)