My AFMA seems fine.. i have the RAW converted version from that 6D shot here :
Then it is likely to be camera settings. I assume the picture style is the same.
The first thing that comes to my mind is the NR settings ... What ISO were these shot at and what NR setting was used? I'm guessing here because I rarely shoot jpg.
1DX, 5D3, 600D, RX100
16-35L, 24-70L II, 70-200L II, 100-400L, 50L, 85L II, 135L, 24TSE, 40, 100 macro, 18-55 II, 55-250 II, 1.4x III, 2x III, 600RT x 4
The grass is always greener when you crank up the saturation in photoshop