The floor plan ruins this for you OP. It's absolutely shit.
I know it says not to scale but considering you've got a single bed the width of the narrow part of bedroom one, compared to how tiny bedroom 4 looks. It looks like you can't fit a full length bed in bedroom 4 from the floor plan which will make people assume you've got a custom built shorter bed in the pictures.
If they could do a decent floor plan that more accurately reflects the space, that will help massively.
Also some of those photos could be edited to add warmth and balance out the colours. You could definitely do that.
If you could agree with ex, I'd say he needs to rearrange some furniture to maximise the space in each room rather than showing people how you actually worked it. Could you dress the playroom to look like a dining room?
Or make it look like a second reception room? A TV room or large study/home office? It would be an ideal home office actually as it has its own toilet and is sort of separate from the rest of the house.
In bedroom 1, I'd swap the furthest bed with the wardrobe and push them together to look like a double. Remove the chest of drawers too so it looks more spacious. Take out some furniture in bedroom 4 as well.
Also, either go with white doors and door frames, or wood. You have both which look really disjointed.