That's really pathetic to steal someone's hard earned property and then submit to the contests where reward is done. This is totally shameful and unethical act being stealing images. Ridiculous!
There are many steemian who are doing the same for the sake of money where they don't even want to put efforts to become UNIQUE. Dunno when they get sense. :/
It's really good step that you checked them out and pointed out. Plagiarism Banned for ALL.