[As if Newt isn't also deeply invested in whether Jake can replicate the tattoos or not; he's got two hands to hold, you know! One for turning into monsters, one for turning your arms into tattoos. He leans in to study the 'sleeves']

Not a bad try, though. Being able to replicate colors, it's a pretty specific skillset that would require really specific cells that reflect or scatter pigmentation. Man, this kind of reminds me of scarification; I've always wanted to try it, but it always looked like it'd hurt like crazy.

[Anyway, about the little weirdo thing-]

Would you be able to actually match the creatures in the tattoo, too?

[Heh, tattootoo.]

Or like Godzilla! You ever see Godzilla? Godzilla is one of my all-time favorites.