thanks Stephen, HHmmm I like what you said about a movie which I would be willing to watch repeatedly, make sense, I guess it was stupid quest. to ask, but i felt like knowing how rest of the people think about it.
Last month I shot two projects the first one was simple to comprehend and execute for a simple reason that my director was a pretty smart hard working guy, he had locked a look and style for the project and had all references lined up to discuss and pick ideas from before we went on to shoot, on other hand on second one my director left every thing on me to decide, so here I was clueless where to begin, I did manage to achieve desired results in the end but i guess i took very unplanned path,tried different things, some worked some didn't, but was a great learning experience in the end, I have been talking to people for while now and have got great insight in to the matter, most of them believe it comes with experience( as you said be ready to make lot of public mistakes)