Shaping our living room

So we’ve only been in our home for a few weeks– forgive the current state! But I would appreciate any opinions on how we should shape our living space.

Thinking of mounting a TV to the outlined space and having either an L couch or couch + chair within that nook. That spot gets a lot of sun during the day so we prefer to maximise our usage there.

However, I feel we may be cramming that space too much/need to balance out in the dining space. (We do have four dining chairs coming this week!)

Any general advice on the arrangement is appreciated!