The second one is just a version of the scorpion where, if you peacock feather pose is good, you can shift one leg into the other, as shown. it is quite simple, if your basic form in the scorpion is strong and comfortable.
The scorpion variations are very exciting. Unlike with the headstand where only balance and strenght is required, the scorpion needs a lot of flexibility to hold longer. So ideally u should up your ante with the scorpion as u go along in your practice. Extending the stay in it and being fearless of a fall:)