OK, so this is a 2 person job, one writer, one artist. We will try and make the exalted stuff clear when it comes up but for now, a few notes:
1:In this comic colour = magical.
2:That symbol on her forehead marks the captain as a Dawn Caste Solar and glows when she uses the magic that gives her (here she uses it to see something 3 miles away with uncanny clarity). Solars are considered a form of demon by Creation's main religion and as a result keeping a low profile is necessary. Dawns are the fight-y-est type of Solar, specialising in all forms of combat and command.
3: The comment about "The Dragons" refers to the Immaculate Dragons, the Messiah figures of the Immaculate Order, the aforementioned "Solars are Demons" people.
4: Their tattoos mark both the captain and the woman in the crow's nest as Tya, women who are officially considered men by society and, more importantly, the sea gods who make a habit of sinking ships with women aboard.
5: I feel odd about leaving only 4 notes...
Looks awesome =3