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All based on this I MADE ALL OF THESE UP!
At first I was gonna do one. . . then 4. . . then 8. . . then you get the idea XD Depending on which design gets the most votes, I'll fancy it up and make that my army colours for my next few pics revolving around Marines.
Personally, I like Sons of Valor, Judges, Paragon Guard and Angel Kings.
Forgive me if some of these schemes have been done already, I haven't checked the codex in a LOOOOOOOONG time.
EDIT: Fixed the The Chosen, Doom Heralds and the Bravehearts to make'em more original. And I made the Stormbirds a little more blue then green.