The signature I use to sign my art is miles different from my real life one ... So over time my art one has changed quite a bit. ... But for big pieces that took a while I sign and lately adding the date (to see how they progress, as I can't remember dates years later). ... For doodles, methods, practice pieces, journal notes, ect, I do just initials, or one of my other two shorter but my stylized signatures. ... Doesn't have to be fancy, Old Script, Graffiti, or Interlocking Letters, or plain Caps, as long as you like it, you'll be able to repeat it and let it evolve