This piece is an example of pattern and texture because of the pattern that the piece makes. The wooden sculpture looks like rocks which seem to have a smooth texture. The light and dark also create visual interest and increases appeal.
The 9 Best Furniture Pieces for EVERY Type of Home via - This comes from an article on the usefulness of stools. I think this particular stool is too skimpy and small. Something with a little more heft and drama would add to the room.