Cautions while writing non-specialist/lay versions of scientific articles
This is certainly acceptable. It is  probably a good way to practice your communication skills.
Unless it is really  well done and turns out to be useful for others
I think it unlikely that it will develop much traction for your own work.
The only downside might be using too much of your time on this instead of that work.
If you carefully cite all the sources you use and don't cut and paste large chunks of words you are   unlikely to ruffle feathers or encounter copyright problems. You should ask before reproducing images.