Which software is used to create pics like these?

[WaqarA]

AA guys
I want to make a news website. I know about web development and how to make my own website but I almost know nothing about photos and art. Can anyone please tell me which software should I start to learn in order to make pictures like these? For effects, adding text and editing?
Best Regards

 

[puppet]

Even MS paint can do this

 

[WaqarA]

Can someone please tell me where to get pictures to edit which are not copy righted?

 

[NaNoW]

Royalty free images * Pexels