DIY Beautiful jewelry box | Craft idea with cardboard

The base of the box was made of thick (binding) cardboard 0.2 cm thick. See the video for all sizes.
I glued the parts with PVA carpentry glue, so it is more reliable.
The corners were sealed with craft paper.
PVA made a self-hardening mass from rice flour and wood glue. I added some liquid soap to it.
From this mass she blinded flowers and twigs.
I glued a cardboard form in the form of an openwork napkin to the lid. Here are the links:
https://art-prosvet.ru/catalog/kruzhevnye-salfetki/chipbord-azhurnaja-salfetka_artchb004210/
https://art-prosvet.ru/catalog/kruzhevnye-salfetki/chipbord-azhurnaja-salfetka_artchb004211/
I made half-beads for the walls using this mold:
https://art-prosvet.ru/catalog/steampunk/mold-nabor-metizov/
I put spackling paste on the base of the box and immediately glued decorative elements onto the PVA glue.
Painted with acrylics in black, olive and tin.