A tattoo, ideally, must be recognizable by someone who is standing a few feet away from it. Usually tattoo artists would prefer doing a bigger tattoo rather than a small one. Bigger tattoos would give the tattoo artist more room for shading, and is actually far easier to outline and add in details. And people who get tattoos find that it is more fulfilling to get one very recognizable and striking tattoo rather than three small scattered ones.
Which now leads us to I think the most important and make or break question of all: how much money would your tattoo cost? Generally, tattoo artists charge by the piece or they charge by the hour. An experienced tattoo artist can merely look at a design and can tell you how long it would take to tattoo it and how much it would cost. Per hour charging is usually done when you go in and have a large custom made design tattooed; one that would need more than one session to complete (ouch!). Nevertheless, keep in mind that this is body art we're talking about so do not go and scrimp on it.