It's a picture, I can't tell how big or small the room is.
Spout, could you post the dimensions and take some pics from all directions.? People are telling you your room is too small, we can't tell, he could have 10 feet behind where he is sitting. It looks like you might benefit from some better setup. Read up on the different methods for speaker setup. The room acoustics should be addressed. It might help to get that cabinet out of there. You could set your gear up on the left, if you clean up those shelves. Yes, that might involve getting longer speaker cables.
Do you live near any audio shops? If so, go in and listen, if you like the store, find out if they will let you bring in one component at a time, and put it into the system they used that you liked. I don't know any of your gear. Could be one big mismatch. I recently heard a system using a Moon dac, I didn't like it. Your CD player was reviewed in 2004, it may be part of the problem. I don't think you will find what you are seeking, by changing speakers, without hearing them and others.
Get the Lumin set up, see if it sounds better than the CD player.
We all have our preferences, but I won't recommend specific gear, not without knowing more about the room.
Going to the audio show is a good idea.