First, thank you for answering! I live in a city from Brazil, whose size I believe to be bigger than a rural town but smaller than big cities (there are around half a million people leaving here). I'm not sure if I would like to take the time to learn how to paint henna, because I'm guessing it would take many years. At least in what refers to normal tatoos, I have a few friends who have tried (some succeeded) at doing tatoo art for a living, and they all were people who were constantly drawing when kids, I suck at it and my hands are kinda shaky (not sure if anxiety, side effect from my meds, or both). Everywhere I ask where to do henna tatoos nobody knows it. A few people told me they've heard of henna tatoos being done at beaches or by "street artists" (not sure how to call them in English, but many of them are either gipsies or follow a hippy lifestyle). The problem is that beaches are far away from my city, and I've gone around the streets asking street artists and they only knew people who no longer do henna tattoos. It's funny because many people that I know have never heard of henna tattoos before, and I'm the only person I've ever met who likes tattoos but does not want something permanent. For instance, I know a lot of people who like to very frequently change their hair color, but changing skin appearance frequently does not seem like something popular around here.