Time always dictates the finish, but this (somewhat messy) desk shot shows a typical project timeline.
I normally start with rough concept scribbles (in foreground) perfect for stage 1 internal discussion and direction. Once we're on the right path, it's natural to move onto a more detailed hand-drawn visual (top right with post-it), to flesh out the art direction and cost-effectively see what does, and does not work. Then it depends on client preferences really. Most are happy with a hand visual to get the ide across, some like Mac visuals. On this occasion 5 creative executions were hand visualised (marker visual-style) and one was mac-visualised (top left with pens on), just to give them an idea of how it can look.
Don't worry, the coconut water was just a phase I was going through.