As I've lost weight, my bellybutton now has a little vertical line from it to my lower belly, plus two little bits of fat that overhang it from the top. At first it horrified me, but now I realize that it looks exactly like an arrow pointing up to my awesome rack. There truly is a bright side to (almost) everything, I guess.
While no one can spot-reduce, it's definitely possible that better muscle tone improves the look of the skin atop the muscle. I think it'll also help to give it some time; a lot of long-time maintainers note that their skin snaps back after a longer-term maintenance as opposed to recent losses.
You look sensational in your pic, by the way!