Photo Album with more detailed pictures (There are more tats in these sets than are visible in the following pictures, note that they were taken on a lower res monitor, so the quality isn't that great, but they look great in game.)
Horned Faded Feathered
Heart Honey Pieces
Skullflower Trunk
Requirements
1) You will need a nude body replacer of your choice (I did not edit the vanilla body textures).
2) Unique Player so the tattoos appear on your character only.
Installation
(First, back up your PlayerHumanFemale folder, always a good idea)
Download manually. Extract folder, place contents into:
Steam\steamapps\common\Fallout 4\Data\textures\actors\character\PlayerHumanFemale
Overwrite when prompted.
It should go without saying, but just in case, you can only have one set installed at a time.
Credits
Daniel McGamer's Tattoo Tutorial video on Youtube.
All tattoos were lovingly edited by me from pictures of actual tattoos on people's bodies. Artists responsible for these images are: Barbe Rousse, Ben Volt, Bouits, David Hale, Geary Morrill, Ien Levin, Ilya Brezinski, Johnny Gloom, Kim Michey, Lorenzo Anzini, Luciana Del Fabro, Luxiano, Marcin Aleksander Sorowiec, Mirja Fenris, Mo Gangi, Nouvelle Rita, OOZY, Pablo Puentes, Philippe Fernandez, Phil Tworavens, Silly Jane, Sven Rayen, Tarmasz, Toko Lören and Valentin Hirsch. They're all amazing tattoo artists.
Commonwealth Shorts for the clothing in the screenshots.
Commonwealth Cuts for the hair used.
My Other Mods
Expanded Settlers Overhaul with KS Hairdos
Commonwealth Vendors Stock 7.62 Rounds
Commonwealth Vendors Stock Nuka World Raider Armor and Clothes