I cannot say enough about the lovely people at Make It In Design. They have taught me so much! Module 2 of the Art and Business of Surface Pattern Design has to be one of my favorites. This course helped me grow as a designer. Plus, one of my designs is on the blog: Module 2 Pattern Design Showcase!
This was one of my first floral designs designed straight in Illustrator. I used some of the tips and tricks from the class and was very happy with the results.