Remove the mirror from the room, not a good place for it either there or above the piano. The clock doesn't look right on the piano either. Maybe a framed piece of art above the piano coupled with a small lamp atop it to the side, you could perhaps incorporate the clock into the decor with something else. I think I'd ignore the corner and concentrate on decor for the media console & piano. Not too many little things , a few large objects so it won't look cluttered. Google online "decorating piano tops" for ideas. Good luck :)

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Love to share suggestions. Tell more? Do you own? As in, can you paint? The room to the left of your front door, is that laundry or kitchen? Budget? No need for amounts…low/medium/high. Dining table and benches are a good starting point. Corner piece…what is it for? Shelving , I could see with the dining table. And, the bone of everyone’s contention…the tv. Where? One thing for sure….from me to you…that front door is going to be painted a color.

Do you own or is this a rental? The pix look a little stretched like realty ones. Since there is a rad between the doors, forget putting TV there. I'd keep the dining close to the kitchen and put the sitting/TV area to focus on the long wall. Start with the fun project of finding a knockout chandelier to hang from that pretty ceiling. Is there a fridge under the microwave? I see only one wall outlet behind the door and one above the counter, so you'll have to use extension cords and cord covers along the baseboards to have enough lighting here. Consider floating your sofa facing the long wall and TV. Then use a drop leaf table behind it for dining. You'll be able to open it all the way for entertaining. Anchor your seating area with a rug 2-3 feet wider than your sofa.