I do not think you are far from achieving what you intended, just probably your eyes have gotten used on this ambient (that is I assume why you've started the thread, for a new perspective).
What I can suggest is the "outsides" in the windows should look overexposed normally, but you can fake it in the way you used backdrops. I just think it is too dark, things inside are brighter
than outside. Keep it but just make it brighter to a point where you can still make out what is it (the backdrop landscape).
The reference attached, I just edited a little the contrast and made it just a tad bit darker overall cause for me it looks just a little overexposed.
The chairs maybe need a turbosmooth, and try adding a light that lights only the chairs for a defining the shapes more maybe. And try croping a little the empty space that is on the tiles, maybe push the carpet a little toward the kitchen.
Hope these suggestions help you in any way, and good luck to you!