I think it looks lovely on the inside, and i love to study a floorplan but a couple of things stood out to me...
There's three seating areas and rooms with similar uses, i think it would help to differentiate them a bit more, home office, snug, playroom, lounge for example. just having photos with rooms with different uses will give the impression of more space rather than room after room with a sofa in. I would also repurpose the bar area as a home gym/studio, which would be lovely as it opens to the garden, that could be a real selling point for some, even if you just remove the bar and hot tub it gives people more scope to use it how they want.
I agree with other posters regarding the outside space, some landscaping could make the world of difference. it looks very overlooked and not particularly safe for children with the low fence at the back, limited grass and paving that isn't even really suitable for childrens trikes, ride-ons etc. Some flowers and more greenery would make a huge difference.
hope that helps along with all the other great feedback you've had!