Glad you liked it. I have seen that some writer focus so much on the writing that the aesthetic is completed forgotten, but we eat with out eyes, we catch the reader on the first minute. I would add to these tips to start with a 2 line intro that summarizes what the post is about. That way the preview will catch it and not the source of the cover (as many people put the cover first and the first text ends up being "source")

There is many little things that make a great difference