The living room/diner looks dark and dingy, and not just because of all the dark grey paint.
You removed the hatch that went into the kitchen, the doorway into the hallway, made the main window a lot smaller, removed the thin window on the left of the fireplace and bricked it up, and I haven't seen if you removed the small window at the bottom of the stairs or not.
You've removed multiple sources of light ibto this room for some dubious reason, and then have put in the giant staircase and decorated in dark colours.
Compared with the photoa from the 2023 listing, it looks half the size now.
Your best bet would be to redecorate in white, and get some mirrors in there when staging.
There's no chance I'd want the wood burner either given it's risks to health, especially if it seems like you had likely DIY'd it.
I think you've made some really questionnable choices on a lot of aspects of this "reno", which others have covered more eloquently than I can.
In your shoes I would read the thread, reflect on the comments, and come to terms with the fact that I'll be losing money on this project and that perhaps this isn't where my/husband's natural talents lie.