Very similar to other suggestions, it looks rented and a bit unloved.
Tidy garden
Show less pics of garden
Don’t highlight the fireplace with its own photo....it’s not an ornate open fire.
Inject some colour...cushions in sofas and beds.
Change bed covers
Think about painting a few ‘feature walls’...nothing crazy, but some subtle colours to give it a bit of life.
Make the dining room a dining room. Move the table into the middle, Does the table extend? You need a larger table with 4 chairs in a house that side. Keep some of the toys in there, but keep them together..move the little kitchen. The colourful unit can go in the baby room...and then some of that furniture can be moved elsewhere.
Put pots and pans away as it looks likes there’s no room in the kitchen...even if there isn’t, don’t highlight it
Some plants, flowers, artwork to make it feel like a loved home
Move the furniture around. The baby’s room looks like a bit of a dumping ground for lost furniture but then the other rooms don’t have any.
Have a look online at other homes...see how they have been dressed. Look at how they lay out the furniture.
Move some of the furniture out of the bathrooms...they look a bit cluttered. These could be used elsewhere