Just find out how to make Just Expressions work with Emotecraft.

Simply delete body parts in player.jem and player_slim.jem file.

.\assets\minecraft\optifine\cem then scroll down to "part": "body" and delete everything. Should be looking like this:

Is it possible to make Emotecraft work with Fresh Moves?

Is it possible to make Emotecraft work with Fresh Moves?

No. Emotecraft use their own parts system that have bends.