This is beautiful, your model has wonderful features, and her direct gaze is great. I would have either zoomed or cropped the background by about 10 percent, to bring her a bit closer.
The fallen leaves on the ground add a touch of colour, which ties the picture together with the read and fawn of the cushion and bamboo, and the shades of brown of the dress and chestnut hair really enhance one another.
I liked that she is slightly off center, which balances the old tree and again allows it to frame her, drawing the eyes to scan the picture several times.
thanks for sharing