While there were only two, the puzzles in this game were constructed very well! The concepts were easy to grasp, even without a tutorial, yet it took me some time to figure out the second level. I also made a puzzle game, but my designs aren't as clever as yours. One thing that bothered me was that it was sometimes difficult to drag around the items between the siblings. But other than that, this is a solid submission.
Viewing post in Split Abilities jam comments
Being able to drag the items between the siblings is actually technically a bug. We half-fixed it (and thought we fully fixed it, but were wrong. We found that out too late and didn't have time to fix it before submitting), which made it more difficult to do, but still very much possible.
The intended behavior was for you to have to carefully decide which sibling gets which ability, and not be able to change it later.