A map of a mountain area with a river running through it

/imagine prompt: Epic fantasy battles across vast open plains, Armies of mythical creatures and warriors pit each other, Wielding fantastic weapons, A storm brewing in the dark sky, Lightning strikes the ground, Fly over the dragon above, Grandeur and heroism in the midst of chaos, artwork of a, mixed media, Combine digital painting with traditional painting，For actions, Dynamic and detailed, --AR 16:9 --V 5