I have to be honest and say that I really hate those artist impressions. I want a good quality floorplan with measurements. If the floorplan is non existent, or too small to read when enlarged, then I'll move on.
Please hire a professional real estate photographer. They are worth every penny and will show your house to the best light. You have no bathroom photos and only one of the kitchen. The bathrooms and kitchen are the biggest ticket items if they have to be replaced, and if you don't have photos of them, then I'll think you're hiding something.
The advertisement says 'detached double garage' but I can't see any evidence of it. I see cars parked on a piece of dirt out the front. Unless you are talking about that little shed down the back of the garden? That doesn't look like a garage to me.
A good tip is to pack away about half of your belongings to declutter the house. Cabinets full of knick knacks and crystal glassware on display look old fashioned, and even if the house is in good condition, it may make people think that they need to renovated and modernise. Remove them, and quite a few of the cabinets and bits of furniture so that buyers can look at the rooms without all your personal belongings in it. The room with all the pine furniture for instance, I would get rid of most of that 'stuff' - the wardrobes, little bedside tables, all the magazines should go. Take the mirror off the dressing table, set up the TV, and turn it in to a proper little sitting room. It looks a bit like an overflow of stuff that doesn't fit in to the bedroom.
I'd also swap where you currently have the dining room and the small sitting room. Take the TV out of the big lounge room and put it in the (former) dining room and create a cozy little sitting room.
You've got a decent yard, but I don't see how it is adding much to your lifestyle. A nice outdoor table space and chairs around, some big pots of colour and create an outdoor sitting area off what is currently the dining room in that patio space. You live near the beach, but I don't think beachside living when I see your house. It could be any house, anywhere.