There are several things you need to pay attention on when presenting your research proposal. Here are some of them:
1. Giving a very general statement that you find difficult to narrow down.
2. Fail in explaining the objective because of unclear research question(s).
3. Not having enough sources in literature review.
4. Unable to decide which research design to use, or fail in defining a design.
5. Fail to define the participants.
Now, think about your weakness. Which one you should improve?