There is a lot of orange wall here, and that is a bid problematic for me.

First of all the expanses of orange are swallowing up the FP. Putting an orange painting over the FP makes your eye skip over it completely. I would concentrate on trying to make the FP the hero of the room, and the walls the supporting characters.

Here's some ideas that may help in that regard.
1. Place a large item on the hearth, perhaps something brass because it's shiny. like a screen -but I am seeing a tall brass pot. Allow the top of the fire place to have a more continuous flow to the ceiling and create more vertical thrust, like placing tall candle sticks on the mantel. Use no art above the FP or small wall art, like a mounted fish plaque, a textured ceramic plate, or something in greys and blues that will accent the orange walls.

2. The walls and wall art on the sides needs to be tamed a little. Consider hanging these orange hued paintings together. Place a table, chest, or short bookcase under them. Move those pieces a little closer to the FP, so they become part of a tableaux. Make a conversation arrangement around the FP, and if there is too much open/ blank wall space in the corners to the left and right of the FP, deal with that in other ways, besides trying to hang a single painting in the center of the wall that is suppose to 'hold up' the entire expanse

3. even though you have wall to wall, you can still lay a cozy throw carpet in front of the FP.

Thanks a lot for your suggestions! Appreciate it, will try to incporate some of those.

Congratulations on the new home. The fun times (and the bills) begin now.

Nice advice Lilylore. After reading that I now know why it is taking me so long to get anything done in my home. I know nothing!