oops, sorry you are correct. On my phone it doesn't show that you can directly click the picture and go to the source. That is actually how I do it too as long as Steemit lets me. Sometimes I do have to add the actual hyperlink with the words image source under the picture. However, you have done it correctly and the images are from a free to use site. I just wanted to make sure, I have seen new users get flagged for simply not knowing better and I like to try and help before that happens. You don't have anything to worry about though because you are doing it correctly 😊
For the sake of not getting flagged as spam or plagiarism, everyone still puts where the picture came from even though the site says you don't have too. I actually wondered about that at first too but it makes it easier for everyone to know that it was from a free site. I just learned about all of these picture rules about a month ago so I try my best to help out others.
Appreciate you looking out for others ^^