Okay, let’s tackle this. So Diane has a BFA in Visual Arts from EMU, which is a solid foundation. She has been an independent artist for over 46 years, which suggests a level of dedication and expertise. Her skills in Interior Design, Galleries, and Art Education are also valuable. However, her experience is not in a traditional corporate or high-demand field, which might limit her earning potential. Considering her education, experience, and skills, I would estimate her hourly rate to be around $75, which is on the lower end of the spectrum for an artist with her qualifications. Some freelance artists or art educators might charge higher rates, but this seems a reasonable estimate for Diane's situation.