Congrats on your new purchase, I am sure you will love the 180. I use the same lens, and it has served me well for quite a long time already! If I am to keep only one lens in my line-up, this is the last one to go.
If you don't mind a little critique, try keeping the plane of focus on the eye of the subject matter. You will find the 180 is even less tolerant in terms of DoF. It gets heavy after a while too!
Anyway, post some photos!