If you can be centered between the side walls and treat those reflection points that's probably good. The only thing to consider is what's happening behind the monitors, e.g., if one has a curtain and the other doesn't. So, it might be a place for one of the panels (front wall).
Open the closet door, maybe get a freestanding kind of room divider or, what I used to start with, a couple boom stands ("stupid deal" 2 for $20 shipped from MF - just don't take them on the road and expect them to last more than a gig or 2!) with heavy blankets/moving pads draped over them. The overhead reflections probably caused (and still do, as I can only "cloud" a very small area because of door openings and attic access) more problems than I realized in my small room. A couple clouds and throw rugs and sitting/standing in the right place w/proper mic placement is a learning experience for all of us resource constrained home recorders!