The armor appears to be heavily deformed possible due to the custom animations from EFM, while I did just only showed the soul hood and armor items, most of the armors seem to be experiencing the same problem

Patched Dungeon Gear mod here: https://www.planetminecraft.com/data-pack/epic-fight-dungeon-gear-patch/

I'm not too sure what can be done to ensure compatibility, can you bring this up on the EFM issue tracker as well?

Yesssssman (creator of Epic Fight) states that your all your armors aren't compatible with their model autogeneration. which causes weird rendering issues shown in the pictures. The Ice & Fire mod used to have this too but whatever they did on their recent updates seem to have fixed the issue. I recommend contacting one of the mod authors to come up with a solution.

Link to issue: Yesssssman/epicfightmod#134