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Well they're certainly different; of course they could both be correct and wired differently maybe due to your winch?
Can you open S and say what the fuse ratings are for each, running from left to right as we look, and if you can identify were they go?
Can you open A and say what the fuse ratings are for each, running from left to right as we look, and if you can identify were they go? This seems to be the main difference. Your main input/shunt into fuse box A (A1) comes directly from an output from fuse box S (S1), which has it's main input/shunt from the starter battery.
On mine, the main input/shunt into fuse box A (A1) comes via the auxiliary battery in line fuse and so directly from the auxiliary battery. Then, position A2 is connected to the output terminal on the CTEK Smartpass.
A3 on mine is a 350A fuse and appears to go to the rear of the vehicle via the offside wheel arch.
Your wiring of S1 to A1 is identical to this setup that lacked the auxiliary battery but still had A3 running to the back of the vehicle (my guess would be this is for the NATO plug and part of the high load option):
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