When having a website created you need to consider not only functionality but how it will look on the screen (or in fact a number of different types of screen). Some things to consider are colour ways, positioning of logo and strap line, positioning of the main navigation and how it will function, photos and call to actions.
Knowing what works on a website can be hard for the inexperienced but if you work with a design agency or web designer then they will be able to advise you what works and from their experience what doesn’t.
Most design agencies will give you a number of visuals that you can look through and make a decision as to which one you like. You should also be able to combine a bit of two or more visuals to create the one that you feel would be best suited to your business/ company.