It’s a nice house, but isn’t photographed well. Rename the playroom to “study”. Also you should clear away clutter from the bathroom for photos. Use neutral colours (fluffy towels, candles, posh bubble bath etc).
You absolutely have to move the double bed into room 1!! It looks so strange with a lone single bed there and messes with the perception of size.
People generally lack the ability to see their own belongings in a space, so judge it on how you’re using the rooms... that’s why show homes are so aspirational. They immediately make the viewer think “I want to live here”. None of your photos inspire that feeling.
If you don’t have much money to spend, I would go to one of the big homes stores like Next, M&S, Laura Ashley etc and buy some coordinated items to dress your photos (look at the catalogues: throws, cushions, ornaments etc) and then return them immediately (unused, other than for the photos).
Potted plants at the front would make the house more welcoming, too. Maybe you could borrow some from a friend/neighbour just for photos.
Good luck OP!