I feel step 2 needs to be expanded to two steps.
There are two screws to release the wheel well arch trim. It then needs to be folding back so you can access two screws underneath near the top that hold the bumper to the metal side panel. These are the screws that pic 2 is showing.
This space is cramped but with a short, straight socket driver, you can get in there to undo these two screws that are hidden by the wheel well arch trim. I couldn't use a ratchet because there was not enough space.
Incidentally, I was just replacing the plastic diamond mesh under the kidney bean grill, so I only needed to release one side, didn't have to take the entire bumper off. Releasing one side allowed me to slip the piece out from the bottom.