This is the opening paragraph. It introduces the question and gives the reader a reason to continue.
The essay can continue here. Keep paragraphs relatively short and allow the visualisation to interrupt the text rather than placing everything before the first interaction.
This paragraph explains what the first visualisation reveals and introduces the next part of the argument.
A smaller question within the story
Not every experiment needs section headings. Use them when they genuinely help structure the argument.
Continue the essay here.
The final paragraphs can return to the original question and leave the reader with an observation rather than necessarily providing a definitive conclusion.