I’m lost on the purpose of this video. What are you trying to accomplish? What are you hoping your viewing audience will take away from this video? What should they feel, learn, remember?
You also need better shots/camera work. Most of the shots here are wide, with multiple people in each shot. Consider that close-ups of people can create emotions such as excitement, warmth, motivation, fun, etc. Your video looks like an edited slide show. There’s really no reason to use video with that type of footage. Your final video could have been better if you used all stills.
Secondly, does anybody care about the people in the video? Why use those shots? This video just looks like you found several shots and decided to cut it together. No rhyme or reason.