re-arrange parent/child posts

Hi guys, simple question: How can one rearrange parent/child posts? I have some that I would like to have in a specific order, but no matter what I try, they won't do what I want.
This is the parent post #1853190
This is how it should be arranged: pixiv #47218827
Ideas?

Create a pool; parent-child is the incorrect post relationship for this set.

Kikimaru said:

Create a pool; parent-child is the incorrect post relationship for this set.

Right, thanks!