So, in case you don't have a Mundane Mystery, I challenge you to think of your own with this picture prompt!
@Pen_Hacker's drawing, art made with Krita, also, completely with the mouse I actually have a true Mundane Mystery for this, and I'll reveal it after 10 remixes! Things to look for in the picture: Zoom in hard and there are actually trees; See at the upper right, there's a weird light? I wonder what that is. That's a Texas flag, by the way.