It's a nice area - I know it well. The house looks lovely and clean and bright - which is positive.
However -
Lots of people don't like wallpaper (me included) - and you have very strong feature stuff in just about every room. Ideally get rid and paint in a neutral colour, or as a quick fix if you can then paint over the paper.
The kitchen does look dated. Have a look at kitchen spraying firms - if the carcasses are in good condition then you could get them sprayed (the results are good and some firms can do it in situ rather than taking it apart and off site). A kitchen that size should cost about £500-700 to have done and it would completely transform the room.
Bathroom - again the tiles and bath panel make it look quite dated. Tile paint in a neutral colour and a new bath panel (or if it's wood, then paint it).
Bedroom - wallpaper needs to be stripped or painted over.
Hallway/stairs - the wallpaper needs to be stripped or painted over.
Garden does need attention. You need to clear away the kids toys and swings for the photos. It would also really benefit from a few pots with something colourful in them.
You also need to declutter - your agent has let you down here. You need to clear phones, babygates, personal pictures etc., when you have your photos done - and your agent should have told you this. The photos aren't great quality - I'd really recommend getting proper photos done and it's worth paying the extra for (once you've painted/decluttered). They should have also told you that being on Rightmove is absolutely essential.