Good stuff. Keep it up.
This is another good episode, but it's just a continuation of an excellent series. There's nothing too groundbreaking about it, but it's still better than average. Heck, it's better than most.
I'm glad to see some new elements added to the mix such the quick change in art style while Satan makes one of his ridiculous facial expressions (another element that helps make this series). I also like the amount of juxtaposition between goofy Satan and demonic Satan (some small gags like the lubricant and large ones that usually end the episode); it was a step up from the last episode. The background gags were great and Leo just works to set up Satan every time.
These are just my two cents, but you're doing an excellent job. Keep doing what you're doing because it definitely works. Can't wait for your next work.