Concept art done a few years back for the licence Werewolf: The Apocalypse (World of Darkness).
One of my tasks was to create a power loader unit to make a strong same-size opponent for the werewolf.
Could not look too futuristic but had to be modular so it could be used in multiple scenarios (different weapons/pilots/armor). My goal was also to mimic a hind leg for it to have some strength/posture to wrestle the crinos.
This concept was definitely challenging for me, didn't knew much about mechanical/robotics design and clean hard surface work at the time.