from w/w CARPET to WOOD floors

I removed four flat 2' X 4' absorption panels yesterday, and liked the results. The sound opened up a bit, and had more emotion. SOME recordings were slightly dry sounding with the panels in place. What I hope to accomplish is more natural sound, which a room being too dead can hinder. Room is 23 X 12 w/ 8ft ceilings, speakers set up on 12' (short) wall.
Sheet rock walls and I have two 4ft X 4ft older RPG-like wood diffusion panels stacked on one another in back/between speakers. Check out my photos on my system page (-:

Another quick detail. All windows are covered with curtains, but some also have thin ply with egg crate foam stuff glued to it. This is true with the rear windows seen in my photo.
Those absorption panels you see kitty cornered are still there. The four panels I removed yesterday are identical, but were on the side walls. In back of my listening position are several Ikea Expdedit racks full of records. I may take a few baby steps and remove the foam from the ply I have tacked to the window frame. Needless to say, this is a dedicated room(-:

Wolf: Yes- Rigatoni for the rear wall, but I find mixing in some stuffed rigatoni for first reflection is helpful for it's diffusion properties.

It's all about the room, and then the equipment. Music comes last!
Seriously though, I want to gradually eliminate absorption. I already have a couple of oriental type area rugs. So if i pull the wall to wall, I can replenish absorption if necessary.