I really like the look. It is a beautiful room and the wood work really makes the custom look pop.
I am just confused as to why you decided to place the system on the long wall and your couch adjacent to it.
As pointed out by j garcia, you really should have built the entertainment center on the short wall and placed the seating position two thirds back from there. You would probably even of had room for a riser and a second row of seats in this configuration.
You invested a great deal of time and effort and it shows but a little more research would have bore these suggestions out.