Tattoos on the feet tend to fade very quickly. The feet carries more weight than other parts of the body and because of that water accumulates in that region. This will flush out the color pigments of the tattoo ink. Women should be careful where they decide to get a tattoo on the foot since shoes they wear leave the top part of the food visible, and could become sun damaged. The foot is very sensitive as far as pain levels go. You may want to choose a different part of the body for a first tattoo. Common tattoos for the foot are floral, lettering, butterfly and tribal.
I did this sugar skull foot tattoo on a nice gal from Philly. We'll be doing the other foot to match. I always enjoy doing foot tattoos. They are a perfect size for a single pass tattoo, and look great when done.