Well that actually sounds quite nice, i dont think any of us have a big or awesome research, and from my knowledge when someone goes for masters degree the demand is not that high in the "research plan" area, im actually part of a graduate program in my university and im part of the interview committee and normally everyone understands that the people aiming for masters should not be qualified as the ones going for PhD.
Edit: So if your doubts mainly come from your research plan, i think you are totally fine.