frontwall with flush mounted monitors (again)

Hi, it's hard to explain what I want to know. The question ist about optimizing the shape of the frontwall that creates the larger baffle. Please see image. First there is a simple form, with absorbers on the side to create a reflection free zone. In the second the frontwall is shaped to reflect the rays away from the listener. But in this case the frontwall gets a more complicated form, with smaller planes angled to each other. Does this have any influence? Is one of those better? Under what circumstances? If I slope the wall by around 10° to mount the monitors higher and direct them to the listener, it becomes even more complicated. See lowest figuere. Its hard to see in 2D, but I hope you get the idea. The wall will be angled just an the side of the monitor? Does this effect the baffle effect? The third picture shows an complete unrealistic strange form, (of course there will be reflections, but that's not the point her). Does this effect the advantage of flush mounting? Or simply asks, is it better to have an (ideal infinite) plain baffle. Or is it ok, to have any baffle at all? Thomas, still trying to understand the principles in detail.