You are correct "Kefka's at the outside of the arena at this prior to Look upon Me and Despair" and that is relative north
You need to dodge Look upon Me (Line aoe AKA Kefka's funny WWE move) and you now know where the supports and DPS should stack based on that line AOE

"Are the feet facing the wrong direction relative to where his face icon is shown or are they flipped? Which way is kefka facing in the example?"
Yeah while the feet are in the correct location, whoever made it didn't bother to make the feet pretty or faced the way they do ingame. But considering you don't really interact with them in any real capacity I think it's fine but it should probably be fixed for clarity