For me personally it depends on the woman. I've seen women with one to a few tattoos and women with tattoos all over their body. Personally I think its attractive either way but I prefer women that have one to a few. Less is more for me I suppose.
Also depends on what the tattoo is of as well. I mean I don't think I'd be attracted to a woman with a tattoo of a penis with an arrow pointing down to her vagina or to her ass Lol.
The tattoo has to say something about her as a woman. Or something more on the feminine side like a heart or a flower as cliched as that sounds but it works for me.
Alright dude here's the truth on females with tattoos. Are you hot? Tattoos will look good. Are you not so hot? Tattoos will make you look like you are collecting a welfare check and have a 1.50 stuffed in your bra to buy a dr pepper later.
I have tattoos. If I could restart and get no tattoos I would. My tattoos are military tats. They mean a lot but they take away from my aesthetic. They don't look as good as when I first got them. But I've accepted them because they were a big part of me in my life at one point. Even if they aren't now they were at one point in my life and I suppose they tell a story.