Should A+ content always be written in third person?

I just started a new amazon account for my small business selling prints of my artwork. I am brand registered and previously with other businesses that were not so personal, I always wrote A+ content in the third person. But with this business, it’s very personal – the brand has it’s own brand name but it’s basically me and my art and I am aim to be a known artist within my niche. Should I therefore write in first person eg “hand signed by me” or should I stick to third person eg “hand signed by the artist”?

If third person is recommended, then should I write the brand story part of the A+ content in first person? And maybe a couple of soundbites/quotes from me in the main A+ content area?