Keep a plain-text master beside every styled version. Verify names against an authoritative source, not memory. Check dates in the intended order, including leading zeroes. Confirm punctuation, apostrophes, hyphens, accents, diacritics, capitalization, and line breaks. If the phrase quotes a book, poem, film, speech, or song, compare it with a legitimate edition and consider whether the wording may be copyrighted when reproduced publicly.
For another language, ask a fluent person to review the exact phrase and its cultural register. Machine translation can produce a grammatically plausible line that means the wrong thing in context. Decorative lettering can also change a familiar character until it resembles another. Show the reviewer both the plain wording and the tattoo text generator output. Ask them to read the art without being told what it should say.
Repeat the check after mirroring. Reversed artwork is harder to proof, so preserve a normal readable copy in the same handoff. Name files clearly: ordinary reference, mirrored transfer reference, and artist revision. A permanent text design deserves version control more than a casual screenshot does.