Hi, Chinyere—to start this is a lot more straightforward than it lets on and you don't want to risk just anyone taking your video, not rescaling or leaving it as-is in a traditional 16:9 widescreen format, and make your prospective donors, members, and current members shake their head and ask themselves:
"...do they really know what they're doing?"
Also aren't you glad this didn't start with the garden variety "Hi Dear/Sirs/Whatever" intro without even seeing your raw clip (to their surprise not everyone in this profession's a dude) and try to shoehorn in academic (dishonesty) writing services, web/app dev, or ads management?
Let's stop that madness from making your outreach and content efforts screech to a grinding halt.
This is from someone that's provided content development, creative consulting, and editing for agencies and YouTube channels alike and won't create the run around that yours truly saved two (now recurring) clients from earlier this year.
Hope to get started soon—until then hope you had a great weekend.