I like it, but I feel like it doesn't really show emblems or family history or anything in it.
http://i.ebayimg.com/00/$(KGrHqYOKpME1qk46tk7BNmmhPCGkg~~_35.JPG
^Richard III has the Plantagenet lion and a norman fleur-de-lis.
Perhaps we would be better off with a flag that is more authentic looking, as Anaris says.
Perhaps the lion you found could be one part of our emblem however, like the plantagenet lion.
Dragon King Dragon + Sallowcape [something] or something along those lines = Flag of D'hara
I kind of like this idea, as long as it's something along the lines of blending traditional D'Haran emblems with reigning monarch emblems, which in this case would be this, I guess:
