Search for pictures on the Internet and preparation for the site

There is a women’s-themed site with a lot of unique articles, but at the moment almost all articles have no pictures. I would like to make the site more colorful and attractive by placing thematic pictures in articles. We need someone who will take care of this issue. For each article you will need to find 2-3 thematic pictures on the Internet, make a small adjustment to the same style (you will need to discuss!) ) and add pictures directly to the articles on the site (there is a higher fee than just finding pictures ) or simply save the pictures in the appropriate folders and transfer them.

How much will it cost to prepare pictures for one article and how long will it take?