What would the banner of the ancient gods be?

I'm toying with the idea of having my own little Game of Thrones in Cerilia, and I thought I would have 7 Great Families, each one tied to a bloodline, contending for the Iron Throne

I based myself on the colours of the Bloodstones for the field, and the totem animal of each god.

For example:

Line of...
Anduiras - Golden Lion on Red Field
Azrai - Green Serpent on Black Field
Basaia - White Eagle on Yellow Field
Brenna - Black Cat on Orange Field
Masela - Silver Dolphin on Blue Field
Reynir - Grey Wolf on Green Field
Vorynn - (Black? or Purple?) Owl on White Field

Next would be to come out with a Family Motto for each line...