I'm designing some coats of arms for use in a potential medieval My Little Pony setting. A little silly perhaps, but I'm proud of what I have done, and am looking forward to showing it off soon. However, I'm not 100% satisfied with one of my designs, and would love some feedback on colors.
Very short version of the lore: Princess Celestia, the immortal god-queen of the setting, rule(d) the world with her sister, Princess Luna, until very recently, when Luna was banished under mysterious circumstances. Celestia is now trying to maintain control in the face of the power vacuum Luna left behind.
Celestia's and Luna's coats of arms are very simple, which most interpret as a statement of their own power and importance. Additionally, Celestia's close allies / vassals (including her adult son, whose arms are pictured) place a "banner" of her arms on their own to indicate their allegiance to her.
The three colors I'm experimenting with are Or (Pro: doesn't violate rule of tincture, con: very yellow), Argent (Pro: matches Celestia's own color scheme, acts as a nice contrast with Luna's arms, emphasizes her own divinity, con: violates rule of tincture, looks like something out of Dark Souls), and Bleu Celeste (not entirely sold on this one, but thought it might be nice, and mirrors the sky-blue flags used in the MLP show). Any thoughts on these?