You can find some examples in previous PGS-D topics from this forum; I can not recall which one it is, but you can Google it.
To be honest, I do not think it is very helpful to look at the proposals and personal profiles of other successful applications; it does not help you improve your own. Here's why:
1. It is really up to your review committee members. What are their backgrounds? Do they have any knowledge of your study? If so, why is it impressive to them? If not, how can you ensure they understand what you are proposing?
2. It also depends on the profiles of your other competitors in the same committee. For instance, three first-author peer-reviewed articles in prestigious conferences or journals do not make you a strong candidate if you are in a hot research area, like CV/ML. However, if you are in an engineering field, one conference proceedings and one poster presentation can earn you a CGS-D.
3. There are many things that you cannot change, including your social activities, your prior scholarships, your GPA in undergraduate or graduate school, etc.
Therefore, do not waste your time trying to improve your current proposal. If you want to try again later, publish papers, go to conferences, socialize more, and—above all—change the topics of your proposals and move to a different committee with less competition and more confidence.
BTW, from 2025, all Tri-agency awards are combined as the Canada Research Training Awards Suite (CRTAS), and the application will be open in the summer of 2025, which means there isn't much time for your next application. Do it now!