I really liked your post. You might be using simple techniques - as you state in your article - but you put them to good use to tell an interesting story.
One comment though - you might want to run a spellcheck on the text and also proof read it for issues that stand out. One trick to proof reading is reading the article out loud. Also, the plot really needs a legend and then I think you can remove the code that generated it (and that doesn’t contain any info on which line color is for which batch size either).
Really nice read nonetheless, thx for sharing.