Just saw the zoopla photos from before you bought it now. Sorry but you have really destroyed that garden. The old listing having 3 photos of it must have surely indicated that this was a selling point.
Think the last estate agent told you the garden is an issue as a way of justifying why it hadn't sold, when really it was because it was so over priced by them.
The kitchen before, I could have lived with until further down the line, now I would be desperate to get rid.
Before I would see, 20k max bathrooms. 10k max kitchen, 10k max for the rest. Great, get it to my choice all in at less than 400k.
Now, your choices and taste has increased the asking price, so 400k, still need a kitchen max 10k, then the garden restoring it back to what it was on top, which I couldn't be arsed with. Wouldn't buy, but if I were to buy it would be at 20k less than your asking price