Screenshot at 1024x768
Very happy to see that VE is now using the same post-edit styling as wikitext! This is a big win for usability, since it is fixed position and so on.
I did find one suboptimal fact though... Since the text of the message includes the page title, it is very variable width, depending on the page title length and the browser width.
One of the UX goals for this notification is to have new users notice it, but for it to eventually fade out of your attention as you become used to it. Since the page title produces very different widths as you edit different pages, this calls a lot more attention to the notification even if you've edit thousands of times.
My recommendation would be to match what's in the wikitext version, "Your edit was saved." since we A/B tested it and we know it meets the goals I mentioned above. Another good solution is simply removing the page title, so that the VE version says, "Your changes have been saved." That seems functionally the same, though I think using edit is good for consistency with the tab names etc.