Dear students,

first of all I'd like to thank all the participants and the mentors who have been helping.

Then, I'd like to remember that the final countdown to proposal submission is on. They are a little bit more than 5 hours left at the time I'm writing this email.
We already have a lot of proposal of excellent quality.

If you want modify one last thing, add a coma here or a point there, do it now.

Best,
David