majestic castle overlooking the sea in watercolor style. concept of fantasy landscape, oceanic scenery, medieval

castle sea watercolor landscape medieval architecture fantasy scenery serene ocean waves sky clouds nature mountains cliffs trees greenery historic fort majestic fortress artistic illustration tranquil painting peaceful artwork coastal horizon imaginative dreamlike heritage seascape turret building romantic picturesque tower structure watercolorist brushstrokes overlooking style concept oceanic watercolour aquarelle art ai generated