There are reasons why most people center the couch, but most people also prefer sitting on a good one. :) I guess I'd try putting the couch where the armchair is now (but extending into the corner), the two recliners where the couch is, and the armchair where the chair/lamp combo is on the right of the photo. I think that the seating would still work for conversation, but you would have the recliners facing the TV (and, honestly, the couch facing the view!). The main drawback would be having to walk around the end of the couch, but I don't think it would be a big deal once you got used to it -- be sure to put some light in the corner though. You could also put a short console behind the couch so it's not such a cold back to the dining room, if so desired.

The coffee table is cute, but very cottage, and the rest of your room is transitional. And your carpet is almost the same color as your couch. That is why it sticks out. If the carpet is staying for now, I would get an area rug for the room to give it a bit more style. You also need curtain panels for the windows.

Sorry but your sketch is not very clear. What are the overall dimensions? What are the blue rectangles? Photos of the empty space? Can you do a wall hung tv?

You know what? You have the wrong accent wall! Can you repaint that side wall to match the rest of the room and make your TV wall an accent wall? Same color, different wall. You could also arrange some of those art works on the new accent wall . . . or not. Here's a setup that camouflages the width with both a dark accent wall and the floating shelves. I do think a wood piece below TV on an accent wall might look amazing. Sometimes some great pieces show up on Craigslist if you search for "sideboard" "console" "buffet.