I don't think random gallery walls are successful around TVs. Here are some examples of framed items around TVs

It might look better to just flank it with the shelves - you've done a nice job with them. I would not corner that table and lamp. Your credenza should be at least 25% wider than the TV itself.

Do you think this is better? We are probably going to mount the tv and then hopefully we won't need a gallery wall and the tv won't look too small for the credenza. I know we need a carpet... ;)

That looks better to me. Mount the TV...no gallery.

So the big question is...do I buy the same console that is 72" vs the 55" one we have and not mount the tv...or do I keep the same console and mount it? We have no electrical behind the tv and I don't want to see the cords so I'm not sure which would be better/cheaper. And yes, I know we need an area rug...I'm still searching.