Shireen Fatima AKA TappsDev scammed me by making me submit artworks for her clients and giving payments as promised Internet

I would like to report a fiverr user who has questionable rights on her creations. 
15 days ago, I started working under a person who claimed to be part of a company called "Tapps Dev", and we communicated through Skype. Her Skype id is tappsdev876.

She said that she would promise to give me payment after 12 days of work, which included logos, illustrations, and other types of designs. She pushed me to finish them as soon as possible, making me stay up all night doing tedious amount of art. In the end, she never gave me the money that I deserved.

In order to track this person down, I contacted one of her client (in which I made a drawing for) and he referred to me to this site in which he had contacted her, and gave me her profile. I noticed right away that one of my work has been published there, in which she claimed that it was her own.

She has wasted my time, energy, and stolen my works for her own benefits. She had basically told me to do many tasks everyday just to help her with her gigs. I do not want other artists like me to work under her, only to find out that they have been scammed.