Tattoos here aren't decoration. The speaker treats them as a record of everything they've never been able to say out loud. Each drawing stands in for a secret, a confession, or a memory that hurt too much to put into words, so the body becomes the place where those stories finally show.
The feelings are mixed. There's pain in the lines about being "scarred" and "hit so hard," but there's also a quiet sense of relief, because what was hidden is now visible. The last stanza turns toward the reader. The speaker knows people will look and judge, yet answers calmly: you only see the surface, and underneath is a whole life.
The mood is honest, a little defiant, and tender. The language is simple and direct, which suits a speaker who isn't trying to impress anyone, only to be understood, even if the understanding comes without a single spoken word.