No.

Any private art galleries or private artwork cannot be added to the portfolio.

The portfolio is a public display of your works. If you want to share any private works with others, be sure to invite them to MyFolio and add them as a contact. If they are not in MyFolio and your work is private, it cannot be accessed (unless you share the original source files url).

Learn more about making your works private.

Learn more about adding your works to your portfolio.