eBay isn't a place to go to sell your talents. It is a flea market for selling hard wares, not jobs.
If you are very good at what you do, don't bother going to sites like Fiverr. You won't be able to compete against low wage workers. When you set yourself up to be paid $5, you set expectations (very low at that for yourself). That is no way to get ahead in life.
You are better off creating a company website displaying your art portfolio and having people inquire within for your jobs. Categorize the site (logos, illustrations, photography, etc.). You need to have a quality portfolio ready so that potential buyers will be able to look at your work before they hire you. Without that, no one will take you for real.
You are in a space of a lot of talent and competition. Consider any college student in the country can do what you are doing. That is how open and wide the space is. You need to be exceptional to get the jobs. If anything, you will have to learn to be your own marketer if you are going to succeed.
Think bigger. There's too many fish in the small pond.