The new episodes were really good.
Super Watermelon Island was a good medium. I really like how they used something as insignificant as the watermelons to contribute to something as big as Malachite. I also like how they used the island from Island Adventure. It was paced very well, and had some pretty nice writing. The dream sequence reminded me a lot of MNOG, which was probably unintentional, but nice.
Gem Drill was nice as well. I like that we got to see more of Peridot, and her emotion she has for the gems. Learning about the cluster was really neat to her, and the cliffhanger was pretty well done. That's really all I have to say, other than I appreciated the somewhat educational part when they were going into the Earth.