What should count as on_moon?

What exactly counts as on moon in art? Should it be limited just to scenes of characters literally on the lunar surface (standing, sitting, or otherwise) or should it include characters in close proximity as well? The latter makes sense if you consider that you haven't left planet Earth while on an airplane, and the same should apply while above the lunar surface, such as in posts like post #7200681. But what about images like post #7199808, where a character is in orbit around the moon, not necessarily on it? If you expand the definition enough, couldn't this technically be "on moon"? Unfortunately, it's somewhat awkward to find images from the point-of-view of the Moon otherwise, or where the Moon is the main celestial body in the piece. You try searches like space moon or in_orbit moon, but they're not perfect and result in stylized moons or images in orbit around another celestial body that has a moon.

So should on moon's usage be expanded to include images from the point-of-view of the Moon, or should it be kept limited to characters literally on the lunar surface?

I think it's fine as-is, just using moon for post #7200681 when the camera is on the moon. Don't think there's enough reason or examples to add more tags or create a new one like "moon pov", "moon landscape", "moon view", "view from planet", etc.
Also, while it only applies to the moon and not other small planets, in many cases earth_(planet) moon (Earth as seen from the moon) applies (incl. to the Reimu post and really out-of-scale depictions).

LQ said:

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Also, while it only applies to the moon and not other small planets, in many cases earth_(planet) moon (Earth as seen from the moon) applies (incl. to the Reimu post and really out-of-scale depictions).

That does actually catch a lot of cases like that, true. And I'd be fine with leaving it as-is too, but the Clownpiece example was ambiguous enough that I felt I had to bring it up.