First Cold Email Experience

For the past few months I have been reaching out to local businesses trying to see if there is interest in one of the products that I recently built. I have never done cold emails nor have I done sales. I see a lot of success stories, but not so many failure stories. In an effort to help change that and build in public, I wrote up a blog post about my (so far) failed cold email experience. I am open to feedback and help as I am sure there any many on this site with much better experiences than me.