The first photo is not good, from that alone I would move on to the next house advertised. Weeds in front of the house and in the drive and down the side path. That wall looks ugly and imposing. Could you maybe put three planters in front of it, with bay trees or similar so that they have height. I can see a fence that looks as though it's falling down and more weeds at the back of the house.
The kitchen needs the stuff that you've got to the side and on top of the fridge / freezer removing.
It needs some furniture in it to soften it. Its all very hard looking.
I don't like the bedroom ceiling but that's personal and not anything you can change.
Storeage? I can't see any.
Is it worth £400,000? Plus if it's been hanging around, people will know. Particularly if you've slowly reduced it. It's recognosed as "hmm they can't sell that". Maybe take it off the market, tidy it up and re market in the Spring.
I would have new photos done too.
Good luck.