It's a nice shot of a nice-looking dog, though I think the wide-angle effect doesn't do her(?) any favours.
I also own the 18-35 AFS G, and I used to own the 16-35. My copy of the 18-35 is FAR sharper than my 16-35 was. It's wrong to generalise from one comparison, but that has been my experience of these lenses.
We lost our dog six weeks ago - cancer. She was my best friend too, and I'm still hurting