These comments are meant kindly, so please don’t be offended. If I were selling this house, just for starters I would:
Make sure my pricing reflects the fact that the kitchen and all the bathrooms are very dated and need complete replacement. I wouldn’t be so hung up on open plan, as people either like that or don’t, but for certain the price needs to take replacement of those key rooms into account. Not everyone wants to do this big work which will put people off - even with a price reduction though unfortunately.
The living rooms and bedrooms aren’t being shown to their full potential- get rid of the mismatched cheap furniture and make up the beds properly with luxe looking bedding - everything looks sad and tired currently. Buyers have no imagination- make it look lovely. Plants, flowers, cushions, pictures.
The front garden gives the house no kerb appeal, it’s just an expanse of concrete - add a couple of planters either side of the front door with some big plants in and flowers to soften things up.