Hello I love your gorgeous work , could you tell me how you arrange and size or re-size your images and where you find non copyrighted pictures please ?

I made my first image post today, now I would like to try and change the image sizing and image position from the side margin. I am sure you are busy but any hints or leads would be appreciated ; )

https://steemit.com/environment/@crok/why-symbiosis-works-between-dolphins-and-some-people-just-help-each-other-it-concerns-minnows

Again ; LOVE your work : )