I have used a chair in this shoot almost identical to one I found in an image in my research. I like using chairs and stools as an option in the shoots as it changes the pose completely and adds a fresh element. Panache Black and Blush, among others in my research, have used chairs.

The image on the right is one of few I have taken showing the back of the model and I like the detail in the garment and the alternative look to the other images.