Marylian summarizes her experience in English level M201, which included 16 units covering various topics like food, talents, celebrations, health, directions, the past tense, biographies, and telephones. She highlights her favorite lesson on talents and sports and the various tools and materials used, including a class blog, videos, and photos. She expresses thanks to her teacher Doris for helping her learn and providing so many resources, and says she hopes to continue studying with Doris in future levels.