Illustration of Ninja for Tatoo

I need Ninja's illust for Tatoo. At least 3 different illust is need! I'm a native Japanese. So when I feel "It's not Ninja" or "It's a confusion of Karate or Tekondo" form Japanese point of view, I'll point you and may ask you to re-design. But I need good illusts attracting Non-Japanese. So I need your sense of design! Thank you.