These are religious depictions. The violent one you are referring to depicts hell – people, not children per say, in chains, on fire, etc with the heavenly scene above with the people there kneeling and worshipping Jesus.

It is still « could have done »…

Magnifying glasses were invented 200 years before so this could be made using new technology for the time. But what blade was used as this must be hard to get anything small and sharp enough

huh. that would make more sense than the other replies

Yes What stories were they trying to share perhaps ??

I found more information on where they are kept.
https://en.wikipedia.org/wiki/Gothic_boxwood_miniature

Could of done some research and let us know what museums contain these, so if we wanted to see one, we could plan a journey?

The wonder of the the detail and HOW they were created is on thing, but for me the deeper question is why, why go to such lengths?? Theregore what is contained within them is of equal importance.

awesome work