I like it.
What I do think you should attempt though, is double-thickness walls. That way, you can have a brick stacked texture on the outside, and a seperate colour inside which you can change for each room. It also means that you don't have the brick texture in every room, because face it, when you enter a persons house, they don't often have every wall made of brick or showing bricks through it.
I would also suggest that you perhaps either add a little more to the garden or perhaps shrink it down a bit. It just looks so, large and plain.
You could do anything from a nice water feature, say a fountain or a pond to something nice like a gazebo.
I also believe that you should remove some of the large amounts of weapons and tools in the garage.
I understand that it's nice to have a little place to keep your weapons, almost everyone has their little secret armouries in their buildings, but all on the sides of the garage seems a little odd. Perhaps just a couple less. It would be quite easy to have your weapons dotted around the house in places, like behind glass cabinets or under beds. Something that's still there, yet more secretive and less... in your face for no reason.
In the garage, I would also suggest you build some shelves or sides. That way, you can make the room look more realistic and vibrant. It's also a nice idea to, in a garage, leave tools like the Printer, Hammer and Wrench out. They fit the scene nicely and can be left on plate bricks sticking out from the walls. You'll find that those sort of things leave a nice touch.
I'm going to say in general, 6/10. It's nicely built from the outside, but it could use a bit more colour. Some tidying up on the interior too, and some more activity in the garden. As well as putting away your arsenal of weapons. With that, I think it could be an absolutely brilliant house. Well done.