Complex sentence: But soon, he gravitated to painting, influenced by futurists such as Gino Severini, Antonio Corpora, Enrico Prampolini, and Giacomo Balla, but averse to the fascist background of many futurists, he alignined himself with more left-leaning artists like Renato Guttuso.
Split into simpler sentences: But soon, he gravitated to painting, influenced by futurists such as Gino Severini, Antonio Corpora, Enrico Prampolini, and Giacomo Balla. Adverse to the fascist background of many futurists, Dorazio alignined himself with more left-leaning artists like Renato Guttuso.