If a house isn't selling it's always price. However I think there is some things you can do to cheer it up and entice people in and make it seem worth the money.
Positives your living rooms, master bedroom and bathroom are good.
Negatives you can fix easily.
Cheer up the outside with some plants, a tidy up, move the bins etc,
Put a rug and some furnititure in the conservatory and move the odd furniture out.
Open the blinds, it's odd to photograph the rooms during rhe day with them shut. It makes it seem you're hiding something.
Photograph the third bedroom, it also makes it seem you're hiding something, as in it's so bad it can't be shown.
Put some things on your mantel above the fire place, it just looks empty, the same with thr kitchen, toaster etc, to make the work surfaces look a tad better.
Really just make it look a bit more homely, warmer, welcoming and loved.