These are the Cross Training Palm Skill of the Seventeen Dragon Capturing Palms [Shocking Hundred Miles]
Shocking Hundred Miles and Crossing the River are quite similar; the difference is that Crossing the River relies solely on physical strength, while Shocking Hundred Miles, during the attack, harnesses the Gang Qi from the air through the Seventeen Dragon Capturing Palms, resulting in a powerful strike.
Simply put, Crossing the River is purely physical, while Shocking Hundred Miles is more of a hand technique that disturbs the power of Heaven and Earth, making them equally matched without superiority or inferiority.
Then there is [Leaping in the Abyss], a palm technique that focuses mainly on agility and speed, adding more variety to the entire set of techniques.
Finally, is the most formidable move among Inflated Brother's three palm techniques.
[Flying Dragon in the Sky]