Conceptual Arts for T-shirts to a Pixar event (fan arts)

I created these concept arts for a Pixar event 5 years ago. At the time, I was working for an events company that had a license for Pixar characters to create a big event. These arts were created for a collection of t-shirts for employees who would work at the event. Unfortunately, the event did not happen due to a decision by Disney Brazil itself and these arts were only used in the layout. But I really liked the result, because I had some freedom to create stylized concept arts with these great Pixar characters and I consider them fan arts to this day.