Hi. Nice piece.
I would like to drop some few advices for you. It is always a good practice to include "references for further reading" in your posts (which obviously is lacking in your post). Also, an introduction and summary/conclusion is advised.

For image licensing, it is fair enough to use Free-to-use images and provide a link leading directly to the image source. For images licensing you can check out this guideline.

Cheers and be good.