Firstly, I want to say that you have a lovely home.
Having gone through the house buying/selling process earlier this year, I know what a stressful situation this can be.
As others have said, a lack of a floor plan would be my first issue. During the seven months that we were looking at properties, I instantly dismissed those online without one.
Secondly, I cannot see anywhere where the measurements of the rooms are given. This again would make me question why?
The EPC is a low reading. I found it interesting when ours was done that this figure isn't necessarily weighted towards the 'big' items that I thought it would be (boiler, insulation, etc) but in fact the sort of light bulbs that are in the property make a difference and that is something that can be easily and cheaply addressed! Could this be the case with your property?
The estate agents ask for feedback from potential buyers after a viewing. Have the comments been of a consistent theme? If they have, is that an area that could be easily addressed without a lot of additional time and cost invested?
I think a few additional photographs of 'wow' areas of your home would help to attract the attention of potential buyers.
I have no idea about the price as I do not live in the area.
I also think people are, understandably, cautious at the moment, with the cost of living crisis, upcoming general election, general uncertainty about so many aspects of life.
However, there is someone out there who is going to buy your house, and sometimes these things happen when we least expect them to! Best wishes to you and your family for a move as stressless as possible!