I prefer to work closely with the employer, communicating regularly through email. Prompt responses save time. I search on my own for references and information needed for the project but whatever is provided by the employer is most welcome since that would set a standard of his requirements. I will provide Thumbnails and changes are welcome in the preliminary stages. My challenge is to make it as you imagined. I believe that you hire me to realize your vision rather than buying my version of your vision. If that is your need I can enjoy the freedom and go wild too. In short, my output depends on your need.