Picture done. Little fish are my idea for this plane's homunculi. And the more I think about them, the more I want to brainstorm for the constructs.
Drawing wise, I definitely want to give the angels (spiders included) a try.
Cute
I like the idea. A below curve creature in one or two colors, but three or four make it worth it, five or six making it mighty. We'd just have to change the wording to "types of mana" since colorless isn't a color.
I like Harmonize. One of those mechanics that save your ass in sealed, but aren't broken. If we keep it and Harmonic we'd have to rename one.
Is conduct a token-only mechanic?
They're not like Ravnica or Tarkir factions no, but the general feel of the colors seems to lean toward enemies working better together. And having symbols for a pantheon of sphinxes, a dragon federation, a hydra cult, demon worshipers, and wanderer markings would be cool lore wise.
I'm digging all of them so far. The split white one looks best of that color to me. And the lower green one. And I'd go with the leftmost black symbol, since it's more unique from the Orzohv symbol and angels embracing black might drift away from sun or star images. BBEG using that one would be cool though. We need a name for her other than's Bitch.
I think the only reason I'd be against 15 is how long it would make the story... but we're not commissioning novels or web shorts, so we can make the story as "long" as we want. And I agree that it's cool that it's a huge song.
Maybe since white is more structured, the Exalted triggers are on artifacts and lands to show "worship" is conducted through structure and obedience and accomplishment. And in general-
Artifacts for white, enchantments for blue, tokens for red?
More angels is all I ask. Though, with the lore and Exalted theme, an angel offering a traveler advice or assistance would be cool.