Be as specific as possible with subject matter. Feel free to elaborate as much as you'd like here, but remember that tangible descriptions will help move this process along a lot quicker! For example: a lounging cheetah, my dog's face, Mario and Yoshi, etc, are great! Only describing your idea as "ethereal, my horoscope, whimsical" etc without any other context makes it more difficult for me to see your vision.
These can be of other tattoos that capture the feel of the design you'd like to get, or other forms of artwork that inspired the idea. You can share photos of the placement you have in mind as well (which is quite handy if you are placing this new piece among other, existing tattoos.)
Please let us know anything else you'd like about yourself, the intentions you have with creating this new art, or questions you'd like to discuss with us.