For something as great and detailed as a Maori tattoo design can be, you should never just "settle" on generic artwork because it was all you could find. Many people end up doing this though, which most folks will regret in a matter of time. To avoid all the generic designs on the web, you will want to stay away from your basic search engines for a moment. Things like Google searches and Yahoo searches only lead you straight to the thousands upon thousands of cookie-cutter websites hat have all the same exact artwork.
Also, most of the tattoos and content they have is over six years old and plastered on hundreds of other websites throughout the internet. Who knows how many people might already have that Maori tattoo design inked somewhere on their body? That's not something any intelligent person wants on their skin, because most well intentioned people want quality, original designs for themselves, especially when it comes to something as detailed and complicated as a Maori tattoo design.