Thanks for the comments. I was testing the new lens so the shots were not made with composition as the primary goal. I thought this one worked well despite that, but I see your points.
I like the way the lens painted the image here. The bokeh is a bit busy, but its not unpleasant. I look at this shot and see great potential for environmental portraits. I was all set to get the Nikon 35 1.4 when this was announced.
I'm pleased with the rendering so far and look forward to getting to know how to use it better. Glad I went with the Sigma.