Just some friendly words of advice.... Don't post pics of your customers cars, or give details about them period. This goes for the internet, your morning coffee shop, and everywhere in between. Most people like their privacy respected, and it's a very small world.
My entire clientele is high end (rich, famous, ect). Price it accordingly!!! You don't want to work harder for the same money. They are demanding (both time and results wise), scope of work, ect. You can quickly wind up working for nothing trying to please somebody.