You may find that there are bunch of different looking pictures that photographers show.  Each one has their own unique style and brand that they put into their artistry.  Their take is influenced by a myriad of factors, such as lighting, posing, composition, and “developing” to produce their finished products.
Some common terms for photographic styles include:  Editorial, Documentary, Moody, Light & Airy
A good wedding photographer will use editorial styling and documentary captures throughout your wedding day.  I prefer to give my images a touch of mood to provide a bit of drama and contrast to the setting.  Take a look at your Pinterest board and see which ones you like to pin the most, and compare that with the photographer’s portfolio that you’re considering.