Content warnings: Anti-intersex, transphobic slurs, explicit artwork of a character who appears to be underage
I also noticed the filename for that image on K. M. Claude’s website is dertoddler-sfw-rs.png. According to Claude, this is supposed to be a pun on ‘der Tod’ (German for ‘death’) and Toddlers in Tiaras, a show about little girls who enter beauty pageants. I think it’s safe to assume the character was really intended to be a child, and Claude just added the age disclaimer to avoid getting in trouble.
They also refer to the character as a ‘futa’ in this post. ‘Futanari/futa’ is a slur against intersex people and trans women.