Tattoo advice please :)?

I recommend putting anything resembling balance either on a balanced (Central) place on your body such as the high-middle of the back, or a place where you need balance in life (Over the heart).

Personally I have an Aztec Sun & Moon tattoo in the upper middle of my back which represents very much the same thing as the yin yang symbol. The only bad part about tattoos on your back is you can't see them without a mirror to admire them ;)

I've always wanted to get a small tattoo behind my ear. That's just me though.. more good places for small, circular tattoos (in my opinion) would be: wrist, ankle, or lower belly.

Wrist, Behind your ear, Hip, Rib, heart or Ankle