All included files are, or have previously been, released into the public domain - CC0
No credit is required.

Included is the blend file, as well as obj exports of each piece.

The textures and some models were derived from:
(They have been modified)
https://opengameart.org/content/commission-medieval - yughues - cc0
https://opengameart.org/content/3d-dungeon-debris-gibs - cc0
https://opengameart.org/content/3d-dungeon-debris-skull-and-bones - cc0

Preview image 1:
Blender 2.83.5