Another NEVER-TO-BE-SEEN mech... the Madcat! It was for a different reason, it's from a different era than what the game was based in.
The Warhammer! Another NEVER-TO-BE-SEEN mech, based off of the Macross Tomahawk. I tried my best and it was rejected.
Last but not least the Whitworth, Vindicator, and Zeus. Pretty sure I didn't post these three designs yet but I'm too lazy to double check. That's it.... no more Mech Warrior art except for logo sketches.