Can I plagiarize myself?

The top illustration was my Christmas card for 1993. Back when the daughter pictured still thought I was cool. She foolishly doesn't realize that I am still the epitome of coolness. There's been another daughter added since this illustration. She will very soon think I am not cool. Any day now. 

Many years later I was commissioned to do an illustration for a parenting magazine, an article about whining children. I had a square space to fill, and the old image of my Christmas card came to mind, and I adapted it to the assignment. There exists a fine line between plagiarism, influence, inspiration, imitation, and parody. Since it was myself that I was plagiarizing, I had no trouble sleeping that night.

Hey, guess what today is? It's the first day of the rest of my life! If I had a quart of gas for every time I've said that, (today's approximate equivalent of a dollar), I could drive to Phoenix and back. Though I've never been to Phoenix, I've got  friends there, so it would be worth the expense. But I've heard that Phoenix is the pits, so that's why it would be important to have the gas to get back. Anyway, life goes forward, and am trying to make the most of it! Started this morning. Again.