I can't think of a student that doesn't enjoying Romero Britto's work. But I needed to add more to round out my lesson with Britto patterns in their iconic bright colors to make them very specifically Britto vs. just ordinary patterns and zentangles. Here's an artist sheet with several enlarged examples for print or display including Britto's paintings, prints and sculptures. 
 
There are 2 Britto pattern "coloring sheets" with patterns provided and 2 that give only one element (dog and cat) and students have to make it into a pattern.
 
Pick-A-Masterpiece Romero Britto is also included, very similar to roll-a-dice and create a masterpiece game but I've eliminated the dice — I found it a little limiting. This version, like our others, just has students choosing their element from each line. It also gives very specific Britto art elements vs. just ordinary elements.