Oh, that's funny
I assumed that a parody ad was going to have dialogue in it, but this didn't have it. At first, it seemed like it was going to be something made for the Tripods themselves. They would recommend Red Bull to their fellow invaders. Of course, with this being a PSA, that wouldn't make much sense. The animation was good in this one. While it's great that something is funny, it's always good to put effort into the drawings.
The tripod itself is especially well designed. I see references to "War Of The Worlds" many times, put rarely see drawings of tripods. It's nice how people let their artistic talent show off with stuff like this. I had Red Bull a couple of times and it wasn't one of the best or worst drinks I ever had. It's nice to hear from you.