Look around the picture and you'll see random objects in the garage. Ask yourself what they add to the picture. In a scene like this, where you're accentuating how empty the garage is (I think?), you should leave things out if they serve no purpose. Examples: Broom, shelving with some random stuff, etc.

You have to move away from just photographing everything as it is normally seen, because it will get boring once the novelty of having a nice camera wears off. People (including yourself) will be more interested in your pictures if you can present things in a way they're not normally seen. For example, your car in your driveway... that's where it always is - and that's accentuated by the backgrounds that include another house/driveway with a few cars. How many times a day do you see that? Probably a hundred.

Hope that helps.