I'm a professional contemporary artist and have made about $50K in the past couple of years just on my ai-assisted artwork. There is not an obvious difference IMO, it's just that 99.99% of ai-art prompts are generic in the same way that the vast majority of traditional artists are generic. AI-art tools just raise the bar so that what used to be evidence of certain skill has been automated, but there are now different skills to wield in order to use creative-generators in more interesting or unprecedented ways.