The first pic is Oda's rough draft in 1998, where Luffy is not sweating unlike in final manga version.Mihawk used an elevated, archaic style of Japanese during his duel with Zoro. Here's my translation. "Know this name: Dracule Mihawk! It is far too soon for you to die. Know yourself. Know the world. Grow stronger, Roronoa!! I shall wait for you atop this throne of supreme might, through the passage of uncounted years! Let your raging soul forge your blade and surpass this sword. Surpass me...Roronoa!!"