The Flag of Altesea

Ta-da! I've finished the Altesean flag. This is the product of several years of ideas. I finally decided what the symbolism was last night.
Shapes:  The three stars represent the three traditional provinces; and the sea, fields, and mountains.  The two diagonal banners possibly represent the two ancient watchtowers between Glagnafrita and Aethahil, Gedullah and Ballahah.

Colors: The red stands for blood shed in defense of country. (Of course.)
The white stars mean that the people will strive to be a nation pure in heart.
The blue background represents the sea, heaven, sky, and other pretty blue things.
The yellow banners: Gold is the color of wealth, so the yellow perhaps signifies the great natural resources of Altesea. Also, it could represent the abundance of small yellow flowers that grow on the peninsula. When crushed, these flowers heal wounds.
The Provinves.
Each color represents a different province.
Red: West-southwest, with Vinum as capital. The west has had constant warfare for the last thousand years. And they are the number one producers of wine.
White: East-northeast, with Green Field as capital
Blue: North-northwest, with Mary's Hill as capital. The hill country, they are proud of their open skies.
Yellow: South-southeast, with Aethahil as capital. Those yellow flowers on the peninsula are famous for their healing ability.