those pictures are horrendous!!
You need to get them redone asap.
The angles are all wrong, totally lop sided, 2 of the garden ones seem to be framing your washing lines and not much else.
My tips-
Get rid of your plants in the front room, tidy up the cables where the TV is. The floor looks cold, add a rug. The angle is wrong, I can't see a sofa, so I am assuming the room is tiny.
Dining room, room looks OK, just need to get the picture angle right.
Kitchen, remove the microwave and the hanging baskets, all the stuff on top of the counters and re take the pictures
Bedrooms. Change all the bedding to plain white. If can afford it, get plain curtains too. Add a couple of colourful cushions to the bed to give a splash of colour. Never push things to the far side, keep everything centred. The desk should be clear. Boys bedroom-tidy the bed and smooth the sheets, currently untidy. Try and get rid of some of the stuff. The curtain looks like it is falling off the pole. Clear the desk, get rid of the poster and the funny wriggly thing hanging on the wall.
Garden, one picture from the back door looking down the garden would be enough.
Is the person who is taking pics using a half decent camera and using a flash? Is this the best agent in the area?
I would head to ikea, spend £100 and get new bedding, curtains and a small rug for the living room.