Leviticus 19:28 You shall not make any cuttings in your flesh for the dead, nor tattoo any marks on you: I am the Lord.
Further our bodies, as Christians, are temples of the Holy Spirit so we should not defile or deface our bodies.
Corinthians 6:19-20 Or do you not know that your body is the temple of the Holy Spirit who is in you, whom you have from God, and you are not your own?
I noticed that girls used to get a small discreet tattoo, but now the trend is to either get many smaller tattoos or to get a huge garish one. It’s really unattractive. And girls should realize that tattoos are permanent unless one has very painful and very expensive laser surgery to remove them.