That is fab. You have to tease us with your new lens, right? i can not imagine a sharper image than that
It will work GREAT as a portraiture lens - it is sharp, has a good bokeh and low amount of distortions. Here is a portrait taken with 24-120mm set to 50mm, f/4, D7000, from a distance of ~ 1,5 meter:
View attachment 72842