How has the Asterix series evolved over time, considering the numerous authors who have contributed?

After René Goscinny's death in 1977, Albert Uderzo continued the series alone for a time. Later, Jean-Yves Ferry took over writing duties, and Didier Conrad handled the artwork. While maintaining the core characters and humor, the later volumes have been noted for a slightly different tone and pacing, with a greater emphasis on environmental themes and more detailed backgrounds.