very nice, is the leather part detailed in ZBrush? how did you do the stitching? by distributing single stitch along the path or opacity map inside shader? How many polygons?
The model was made in 3ds max, all made of poly modeling. Stitches made with geometry and multiplied along the way, on the surface. I added ties on the little hairs, the Hair and Fur modifier. The model has correct texture coordinates, which allows to correctly configure the materials.
The model of a chair without stitches: 15564 polygons
The model with the stitches: 137900 polygons