OMG:
"...The uploader's photo contain a big majority of brown, when yours contain just a minority..."
That's EXACTLY the point. The OP's photo was "after" treatment. It is the target that you are trying to achieve, whereas mine was a typical "before" shot that needs to be processed to look like the "target" image.
Photos rarely, if ever, come out of the camera "with a majority of brown". Unless the weather, lighting or the subject itself is quite unusual, they come out looking like they do in real life, ie, with a normal range of colors, often much more contrast than desired, etc. In fact, I would bet good money that the original of the OP's image looked exactly this way.
So, any procedure that one proposes to result in an image with low saturation, low contrast, and have an overall color cast ABSOLUTELY MUST be able to start with a "normal" photo.
As a good example of this, look in
the parallel thread Vanilla Tones thread at the results of me processing my (saturated, contrasty) photo of the fiddler with this goal in mind. The only substantive difference between that thread and this one is that the desired overall color cast is slightly different in the two threads.
HTH,
Tom M