I think it might be a bit hazy around the face because of the reflected light off the sheen of the bamboo hat.
From the looks of it, it's a high iso meaning the picture is grainy and lacks detail, particularly the greenery in the background, it shows a lot of grain.
Her skin tones look all right to me.
The photo gives the impression as if it was taken during a rainfall, but then the hat would be wet. I guess you had only very little light and had to up the ISO quite much? That fact does show and the noise and shadow of the hat make her face a little "foggy". Do you think the colour temperature is too "cool" (too much blue in the picture)? I don't, I think her skin tones look perfect.
Where were you? Vietnam?