Asian art is very inspiring to me and I want to emulate it a lot more in my work. Not even necessarily the subject matter or themes, but even just the color theory and composition go above and beyond. I also really like Huiliochi art, and I see a lot of those influences in contemporary Spanish tattooers' work. Of course, I do love classical paintings as well, Rembrandt is THE homeboy. I think a lot of what Aubrey Beardsley was doing with his textual elements would translate well into tattoo as well.
I think I am mostly inspired by really powerful images that have a graceful sense of direction. That is how I want my tattoos to look, both in my work and on myself.