There is a slight difference in connotation between these two words. While both point to structured bodies, institutionalized hints that it is actual (physical or people/group based) institutions, while establishment hints towards leading groups or peoples with politics....in a simpler way, the establish leads/controls the institutions --> Institutions are established/created by the establishment. And yes, your summary is pretty correct, to edit it further, however: "Still, the neo-avant-garde still was able to make their criticisms of the cultural politics of establishment public and tried to resist the institutionalisation of art" Your mistakes fall in: They didn't just say they did, but that they were able to. This means that it was an attempt that was difficult and could very well have ended in failure. Also, they did not "resist" they simply tried to resist. This means that this action could also, and quite possibly did, end in failure. Also, keep in mind that it was not stated that they publicly criticized them, it just stated that they made criticisms public, which means that the writers of the criticisms are unclear, and may have been some people who were part of their group and some people who were not (the fact that it says "introduce" probably means that a majority of these criticisms were there's, but as it was not stated, it could mean they simple took criticisms from other people and put them into the public via speeches, newspapers, polls, etc...)