Wide banner illustration for a battle selection card; the...

Wide banner illustration for a battle selection card; the main subject sits in the middle band of the image (it will be cropped a little at top and bottom). Same painting style and palette as the reference image: ancient Chinese star chart over a night landscape, deep navy sky, fine glowing lines, soft glow. Keep it readable when small: few large clear shapes. No text. Scene: a column of armoured demon soldiers drawn in glowing magenta lines, with big spiked round shields, marching in from the left across the middle of the sky, a few magenta fire hounds leaping ahead of them from the top; on the right the Big Dipper glows cool white-blue (#CFE8FF). Dark misty mountains and a small pavilion at the bottom. The shields and the marching column are the large clear shapes.