You have a lovely home with a great garden - that’s your selling point as it’s huge and great for kids.
With it being a family home I didn’t see a place to eat a meal. You can just about see a table in the kitchen, but it’s not very clear at first glance. On the plan you can see the kitchen leads to conservatory, could you put the table in there and make it more of an eating area? Or just have the photo retaken so you can see the table?
With regard to the tv and sofa being a bit squished, you could put that two seater sofa in the conservatory (if you don’t have a table in there) and put your tv at an angle - just whilst you get it sold. This might open up the space.
I have read on here that people buy bedding to show their homes, so maybe different bedding for the main bedroom or just iron it for the photos.
I agree with other posters about giving it kerb appeal too. You can get cheap fake hanging baskets from IKEA.
Good luck.