Just being honest OP. Clearly you loved the house the house and bought a family up there, but it could use some TLC.
The first pic shows a messy, dirty looking 'fence' made of uneven rocks! Could you pressure wash it to clean it up, clean the number 20 and get newer pics done now. There will likely spring bulbs coming up and the shrubs starting to green up, which looks far more appealing that the current pic. If you could afford it, a few trailing plants like the pics, which hang over and cover some of the rockery thing might help.
The front footpath looks broken, uneven and different colours. I'd pressure wash this and fix any uneven parts.
Pic 8 is a toilet, with ugly pipework on show. I'd remove the pic, as it really adds nothing at all.
Pic 11- the view outside looks messy. I realise that isn't even your own garden, but I'd have the photo re-done, so the focus isn't the outside view.
Pic 20- Really doesn't look good. The green algae on the roof tiles, the clothes line and rusty pole, and visible plumbing pipes in different colours. I'd be wondering why the roof tiles have that green line, when it's not under the chimney? I'd be worried about sitting water or a leak up there.
A completely concrete/paved back garden on 2 levels doesn't look child friendly at all IMO.