FYI I show Yorkies and so I may sounds like a complete bit#h, please don't ever take offense in anything I say. While maybe not for the show ring, I ABSOLUTELY (and always have) those darker markings! Her color is absolutely stunning and she seems well put together (from the photo).
I've got a new little girl I bought from a breeder in Budapest, Hungary that is flying "home" soon. A link for her photos should be somewhere on my profile.
And while her incision may look healed, there is scar tissue she's developed inside (you should be able to feel this if you push around on her tummy. It'll feel hard-like the vet may have forgotten a utensil in there!
) and so no, the timing still sounds right to me.