Jazzkid to answer your question, I think that the weakest link of your system is the blue coloured painting of your room. Blue is transmitting a kind of psychological perception, which one may associate with cold, distance and being without emotive connections. Try repaint your room to a warmer sunnier color. Than you may change the location of your speakers. There are lots of info on this issue.
Most Important?
After speakers where do you focus the lion share of your funds. I known garbage in garbage out. Would you buy a really great amp and an ok cd player of vice versa?