Hello,
I'm sure that I can do videos better then your example :)
I have 4 years experience in editing/producing videos.
I’m very interested in this project, and I find it to be easy.
My work will be done in 4 days (or less if it will be possible).
The video will be made by your specification, and I'm sure that I will come up with some great ideas. :)
I'm sure that we will work great together, and I can't wait to work on your project!
Thank you for this opportunity.