I really like the project proposals for the following 3 reasons:
It's concise, straightforward and well-written;
It contains technical detail that looks really interesting;
You included links to the dataset so that people learn more about the project or dataset if they want to.
However, I think there is still room for improvement:
It will be nicer if you can point out the value of this project to the company, since we are assuming we are writing this proposal to a manager;
Introduce a little more background will be helpful;
Make it look nicer probably? especially for the movie one. It will be great if you can include a title and list out team members' name in the proposal.
I really like the project proposals for the following 3 reasons: