L'école de Pan (Cat and Bear Transformations)

This French comic series is about a school for apprentice superheroes. One of the students is Felix, who has the ability to transform into a cat (an anthropoid cat, to be exact). Here are all the transformation scenes I could find. Everything is in French.

From Book 2:

From Book 3, which also has a student who can turn into a bear:

And from Book 4: