With the numbers you provided, there are a couple of things you can do to define your
abs. You don't appear to have a large amount of
body fat. I would recommend doing more Abdominal Toning work.
Slow down on your crunches and actually decrease the number. Focus on about 50 slow two count inhales as you raise your shoulders and four count exhale as you go back to the ground.
If you have access to an Incline bench, the situps going up and slow coming down are fantastic or your
abs. You can also alternate raising yourself up by taking the elbow and reaching for the opposite knee and vice versa for your obliques.
Slowly and controlled, extend your legs and roll them over your head such that your shoulders are on the ground but the rest of your
body curls over.
Doing a series of various floor ab
exercises are also beneficial.
You can be as effective with your ab work by dividing your repetitions among the different ab
exercises.
The best thing you can do is slow down and really focus mentally on each movement you make as you work on your
abs.
Here's a routine I found on the internet that works well:
Simple Abs Workout | Go Workout Mom
Good Luck,
Cindy