Not indicating that the content you copy/paste including images is not your original work could be seen as plagiarism.

These are some tips on how to share content and add value:

Using a few sentences from your source in “quotes.” Use HTML tags or markdown ">" before the quote.
Linking to your sources.
Include your own original thoughts and ideas on what you have shared.
The quotes should not cover more than 50% of the whole post. At least 50% of the content should be original.
Repeated plagiarized posts are considered spam. Spam is discouraged by the community, and may result in action from the cheetah bot.

If you are actually the original creator, please do reply to let us know!

Thank You!

More Info: Abuse Guide - 2017.