A picture of a woman in a bikini posing with a bull statue is not an image I would want to explain to my kids or my boss.
A children's show - whoever it was created by - should be evaluated on whatever merits it has or doesn't. Many kids shows appear to me to be oversexualized, but that's an issue I prefer to call out on the basis of material in the actual show, not on the basis of what else the creators of the show have been involved with. When we run across material inconsistent with our family values, I explain how and why I don't want to watch. There is a big difference between "I don't like the way these characters treat each other, or behave to their families," and "I am worried that the guy who wrote this may be sneaking in subliminal messages about a sexual fetish."
A lot of people in the entertainment industry have some porn credits, for a variety of reasons. Most use better pseudonyms than this guy.