I think this is a rather bad use of space that is too small for a HT setup. Especially coz it looks too narrow. Narrow in respect of sound stage imaging. Think of a panning scence effect where a train enters on the right side, goes through the center and leaves on the left. In this setup you are going to loose all the illusion the film mixers recorded in the FX sound tracks coz the effect will collapse right in the middle only moving a bit to right/left.
Dunno if there is any other location in your room for a much better speaker setup, but its definitely advisable to experiment with wider location of LRs a bit. How about your surround placement?
Yes the “spacing” up front is not ideal but that is how it must fit. The Rear surrounds are mounted on opposing walls at a much better distance. BluRay’s do sound nice and prompted one of my neighbors to ask if I had a new sound system!