Hello! Sorry in advance for bad english.

I know not everyone uses mods that change the look of the player, but I noticed a small issue that I think could easily be fixed for the pleasure of the eyes and perfection!

I use the CPM mod which allows me to create 3D models to change that of the player
(https://www.curseforge.com/minecraft/mc-mods/custom-player-model-cpm)
and unfortunately the arm animations don't work when I use a wand...
I know it's a detail, but I think it's important for the eyes ^^ And there are surely other mods which change the model of the player and which may not render well either with the animations of the wand.
If you ever want to fix the problem, the quark mod emotes work fine with custom models, and I believe the source code is available.
Here is an example: (https://image.jimcdn.com/app/cms/image/transf/dimension=683x10000:format=png/path/s97367163476d0868/image/i613e873a38cf1d72/version/1639368705/image.png)

I'm using minecraft 1.12.2 with forge 14.23.5.2859 and the version 1.1.0 of CPM mod (and Quark mod)

I hope my suggestion will be considered ^^
I remain available on discord: Hahdrim#4269 if you need more information and testing.
Bye bye! And thank you for reading me.