The fish is pretty interesting; curious to see whether the bigger fish is simply an evolution or some kind of form change.
I honestly don't really mind the sandcastles. They remind me a bit of Vanilluxe (but better), a Pokemon that I've always had a soft spot for.
Bewear's pre-evo is kind of meh. Essentially just a smaller Bewear on all fours with an even creepier smile.
Aolan Meowth is also meh in both its typing and design--essentially just a glorified Purrloin. Hopefully Aolan Persian will improve upon the lackluster design.
Aolan Marowak is my favorite of the form changes thus far, boasting an interesting design and type combination as well as a nod to the Gen 1 Ghost Marowak.
Finally, I like the first look at Team Skull. Gen 6 went a bit over the top with the Team Flare world domination/destruction plot, so I would definitely welcome a Team Rocket-esque group of gangsters and thugs.
Overall, pretty cool stuff. This hype train ain't got no brakes!!