I thought the production was great, just needed to tweak the things I mentioned. Of course that's up to you.
I like the fact the process was slow (actually not slow, but rather at a good speed) so people could watch it and be able to process what's being said, which is how I caught the gel thing. So, that's a plus. Good, clear, "just right" speed of narration.
I guess you're doing this to show to customers perhaps? If so, you may want to forego asking a customer to leave the window down to finish airing out the car. In my book, if I pay a detailer to detail my car I want it returned dry. I'm human and I may forget to follow the instructions of my detailer. Just too much chance to take of mold and mildew issues. I could see it if you were mobile, but having a shop makes it too easy to just keep the car until it's dry.
Some more comments. No more, no less. Certainly not trying to be overly negative, simply mentioning points that I think are worth you addressing.
You wouldn't believe the links I've clicked on from members here that have their own website with multiple, and simple mistakes in descriptions. It's a simple matter in fixing those mistakes by doing as you have done in asking for people to take a look. We all overlook mistakes in work we have done, especially with regard to videos, or descriptions on a web page. It's hard to edit your own work because you know what you're trying to say and our mind says words (we hear ourselves read) while we are reading that our eyes do not see. It's sort of like thsoe trikc wodrs adn setnceses poeple try to eus two show us waht uor mind can see adn waht our eyes dot'n.