One of the story ideas I had for Equestria at War was having the Frozen North as the final, world threatening villain, seeingas iut was implied to be both cobscious and malign in the Crystaling episodes. Anyway, I considered doing some version of King Charlatan from G1 as it's leader, but a penguin leading the Frozen North didn't seem very fitting, so I decided to go with the animated body of Meghan from G1 instead. At which point I realized how utterly GRIMDARK and stupid the whole thing was and canned it.
Still had a sketch of Meghan fighting Celestia lying around though, so I threw some Dark Souls aesthetic on top and finished it. Should have had colour too, but ran out of time.