Well, yes the overall image is most certainly meant to be displayed just like so. Obviously the subject of the painting is upsidedown, and you already knew that but from your reply now I take it you actually want to know why itīs upsidedown. Isnīt it more interesting to have that open for interpretation? You could perhaps imagine that a hogmonaut spends a fair bit of time in zero g which would explain the upsidedowness. Or maybe Brad just wanted to go for something that throws the viewer off a little.