Here is my recent after - I still have that last inch to go to get to 25 1/2 inches (currently at 26 1/2 inch waist)- but its a work in progress. This was taken 9 weeks after birth after closing my diastasis recti in week 6 and toning with the Tupler Technique®: I did 10 sets of 100 Seated Tuplers every day until my diastasis was closed. I also wore my Diastasis Rehab® Splint very diligently. I think that was a big factor to have closed my diastasis faster than after my 3rd pregnancy, when I didn't wear the Splint nearly as often.
So that is that! Another baby down, another diastasis conquered!