creative dark background. violet-red-blue twilight sky with overcast and crimson glow

background abstraction sky backdrop evening element twilight clouds cloudscape purple blue dark moody unreal screen saver fantasy mystical design decoration nature natural red atmosphere meteorology cataclysm stormy thunderous overcast light dust crimson creative mood phenomenon heavenly depressive book cover colorful contrasting interesting cool studio photography creativity artistic wallpaper effect texture art violet-red-blue glow