Thank you very much for sharing this content.

You use copyrighted photos. That means the owner of those photographies did not agree to distribute them for free. It's a common mistake but very important thing to change - in many countries using copyrighted photos without the permission is punished by law.

Stermit, like every other place in Internet allows you to share your own pictures or those of them that are on Creative Commons license. Read more about the license here: what photos can I use on Steemit

Besides that, remember to give the proper source under each of the pictures.