Keep it up...
One suggestion (and this is a big one), please get a better microphone. At least get a cheap foam POP blocker to go over the mic you have. It is very distracting and unprofessional. Also, you should take some time and study about sound editing. Pay attention to the pauses between your edits. They are too quick sometimes and it makes the flow of this work too rough. Even media that is not for entertainment purposes should be done well. Plus, you know that you are an ambassador, and the quality of your work should not distract from the power of the message.