This is the sort of colour I had in mind:
http://willows95988.typepad.com/photos/uncategorized/2007/09/08/oldporchchair_2.jpg
However, I realize that this is a rattan chair. I've seen other chairs with a similar colour to yours, but they are all sanded smooth and varnished to enhance the natural colour of the wood. Abuela's chair is clearly rough-cut (see the depth of the visible grain). A sandy yellow would, though, work nicely. Something like Citadel Tausept Ochre followed by a light overbrushing of Dheneb Stone or Bleached Bone?
As for Abuela herself, I think her hat is awesome. Main crit, if anything, is that the colour of her smock and the colour of her skin are too close and her features are lost. I'd say a wash on her face of Ogryn Flesh or - for a much darker finish - Devlan Mud would give her a more weather-beaten, darker flesh, and if you lightened up the upper half of her smock with the original basecoat and perhaps mixed with some white for the raised areas, the two would stand more distinctly apart.
Not sure about the bandoleers. I know leather does come in that shade, but again I think it's a bit too light...? Perhaps a Devlan Mud wash is all it needs just to darken the recesses and act as a dividing line between the bandoleers and the smock. Personally, I'd've chosen a darker brown for the leather (even the same colour you've used on the chair), but that depends on what effect you're after, I suppose.
R.