Ronnie Del Carmen was born in the Philippines in 1959.
Ronnie del Carmen is currently working for Pixar Animation Studios in Emeryville, and was recently story supervisor on Pixar's Up. Prior to that he's worked at Dreamworks and Warner Bros. All in the capacity of story artist, story supervisor, character designer, illustrator and all around pest. There's documentation that shows he's been dabbling in comics over the years for DC and Dark Horse among others. He self-publishes his own comic book, Paper Biscuit.
Ronnie represented his character Nina, walking in front of the sketchbook on which we can see her as well.