A gentleman who I will call "demolition2013" from Irkutsk, Russia sent me a couple photos of his arm tattoo from 2016 that imitates Krystal's thigh tattoo. It's actually a really nice and compact rendition, with a tighter spiral, thicker lines, and closer arrows, when compared to a more game-accurate tattoo. I don't normally like tattoos, but if I were going to get one, it would be one like this: simple, abstract, and plausible deniability if someone asks you what it means. ;)
Compared to this Krystal back tattoo that subcomfeppo had done, or the Krazoa head chest tattoo by leonsdrago619 over at Starfox-Online.net, demolition2013's tattoo is much more subtle and nice in my opinion.
Thanks for sending this in, demolition2013!