The only thing I changed was to put the "Few facts about dolphins" into title case to turn it into a subheading under the title.

I like how you turned into more of a personal experience. I struggled to do that in some of my earlier articles.

You can also include a few subheadings in the future if you want to make it easier for the reader to scan.

Either way, it's all good and you can do whatever you think is best!