A meta question one should ask is: why do you want to write a technical blog in the first place? If it is fame and fortune, blogging about your favorite obscure technology probably isn’t the easiest path.
On the other hand, if it is for the purpose of your own understanding, then it doesn’t matter whether you have enough pictures, or your first paragraph elicits sufficient dopamine to compete with TikTok. By default the most important audience will be yourself in the future, and by definition if you’re rereading the article you’re already interested. Instead, you should focus on highly detailed and precise language which help you understand the topic in the future.
Likewise, if it is for the purpose of bolstering your professional profile, it’s unlikely your content will be evaluated on how catchy it is.