Question about a series of commisions

Not entirely sure what to title the threrd, but was uploading a series of commissioned pics from a guy off Pixiv (A series of Half Life x Touhou art), the thing is they've got different artists (2 different ones), should I use the parent function, a pool, or something else?

Post relationships via parents and pools should only exist if the posts are actually related like a continuous series, variants, themes and the like. If it's just a collection of posts that aren't really related besides the fact that they were commissioned by the same person, they're probably independent enough to not need to be related. An actual example would be handy.

WRS said in forum #418916:

Post relationships via parents and pools should only exist if the posts are actually related like a continuous series, variants, themes and the like. If it's just a collection of posts that aren't really related besides the fact that they were commissioned by the same person, they're probably independent enough to not need to be related. An actual example would be handy.

Here's all 3 (it's recent so he may comm more IDK)
post #10809553
post #10807868
post #10804443

I would leave those unparented.