Ancient Caucasus open analysis and discussion

The following samples from the recent Wang et al. paper on the genetic prehistory of the Caucasus are now in the Global25 datasheets:

Catacomb RK4001
Catacomb RK4002
Darkveti-Meshoko I2056
Kura-Araxes_Kaps ARM001
Kura-Araxes_Kaps ARM002-003
Kura-Araxes_Velikent VEK007-009
Maykop_Late MK5004
Maykop_Late SIJ003
Maykop_Novosvobodnaya I6266
Maykop_Novosvobodnaya I6272
North_Caucasus_MBA KDC001
North_Caucasus_MBA KDC002
Progress_Eneolithic PG2001
Progress_Eneolithic PG2004
Steppe_Maykop AY2001
Steppe_Maykop AY2003
Steppe_Maykop SA6001
Steppe_Maykop SA6004
Steppe_Maykop_o SA6013
Vonyuchka_Eneolithic VJ1001
Yamnaya_Caucasus RK1001
Yamnaya_Caucasus ZO2002

A lot of people don’t seem to be aware of this, but the links are always the same for all of the datasheets, even after major updates:

Global 25 datasheet (scaled)
Global 25 pop averages (scaled)
Global 25 datasheet
Global 25 pop averages

Feel free to analyze the data in any way you wish and share your findings in the comments. Did the authors miss anything?
See also…
Big deal of 2018: Yamnaya not related to Maykop

Source