I agree with what several people have said, but let me try to express it differently.
There are a couple of ways to develop a personal style (aka vision), I think.
The first method is to examine current art trends, stretch that in some direction, and repeat. If you stretch the trend far enough, most people won't figure out that it's contrived. If you're a "real artiste" you'll be able to artfully deny such claims. A lot of commercially-successful work may fall into this category.
The second method is more difficult. It entails defining and refining your personal philosophy until you really understand how you feel about the important elements that pervade everything, and then figure out how best to reflect that in your work. Then, it doesn't matter what the subject is, that same core emotion will be reflected in how you photograph it.