You need to rent a large storage unit and stage your house properly if you want to sell.
It's not a bad house, and you say the layout works for your family. But it isn't presented well as a family home for someone wanting to buy. The virtual tour shows every space if filled with storage or boxes or things.
I know it's hard to move house an forests yours as not having outgrown it with young children, been there and done just that, but we rented a large storage unit, put 1/3-1/2 our stuff in it, and lived minimally whilst selling. Your kids might well like role play, but once you move they can do this in the new house.
If even consider removing one of the sheds and storing its contents to make your garden look bigger.
At the moment looking at the tour, all I think is you've outgrown the house, & viewers will think the same.
No dining table unless things are moved and it's folded out, hoover lives in the hall, high chair in the living room, baby change and toys stuffed down the side of the sofa, everywhere there is extra storage furniture. Even looks like the kitchen door won't shut because of the fridge and bin position.
And that's with 5 bedrooms and 2 big sheds, you and your stuff doesn't fit. So why would a viewer think theirs would?
The master bedroom needs to have the bed with a bedside table either side and space to walk around.
Rent a storage unit, full it, stage your house, look on RM for inspiration, and take new photos.