I’m always suspicious of a house where the first photo is not of the facade, suggests it doesn’t have kerb appeal. Can you improve that at all and reorder the photos?
Present the garden as a useable space, bistro table with a lantern on it and some pots of colour would do it. Current photos really are dire.
Do you have to climb into the bath from the narrow end to use the shower? That’s how it looks in the photo.
One of the bedrooms is really cluttered - loads of stuff on top of shelves. Get rid of all that, and the weird photo fairy light thing on the chimney breast wall.
I hate the hanging rails. Looks like a bedsit to me! I can’t unsee your winter coat with the furry hood. It’s at odds with your nice shutters and smart kitchen somehow. At least maybe box up your winter stuff and hide it away.
In the sitting room, is your tv at a really uncomfortable angle to watch? It looks like it is. Might be better on the cabinet? Every space really needs to look workable.
I don’t like the dark grey industrial look personally and I would know how many coats of paint that will take to cover it. But - it wouldn’t put me off buying it, would just need to be high on my to do list after moving in.
All this said OP - my son is currently house hunting for his FTB (London 🫣) and he’d be over the moon if they could afford something like your house there. Biggest factor has to be local market really.