Our body is the holy Temple of God. The Holy spirit resides in us. We should not defile it. Would you draw on a church? Why not? What would it matter? Are we not more prescious
than a building?Not to mention in leviticus it says not to and Jesus did not come to do away with the law but to fullfil it.

God loves you written on or not, he only cares that you not get erased from His book. writing on yourself will not erase you...it only marks you up a bit. Think about this: that tiny little butterfly will grow with you, in 15 or 20 years it might look like Big bird. I think God cares more about what is in our hearts than what we wear, or wear on us, unless it is a something you would be ashamed for Jesus to see. Ask Him what He thinks of it. that is the best way to know if anything is good....He wrote it all down for us.