Givio, It came out so great! I love the pattern play you have going on.
The tipsy triangles turned with fabric B closest to the medallion looks so good on yours! After seeing all the quilts here and on facebook, I think it depends on the fabrics on the best way to place it. On mine, I don't think it made too much of a difference but I think if someone's B is lighter and or stands out more from C, then I like B placed closer to the medallion, like yours.
And add me to the "I love orange" crowd! I have two wing chairs in my living room with bright orange slip covers. lol They aren't for everyone, but I love them!