Complex sentence: Painters would depict happy, muscular peasants and workers in factories and collective farms; during the Stalin period, they produced numerous heroic portraits of the dictator to serve his cult of personality all in the most realistic fashion possible.
Split into simpler sentences: Painters would depict happy, muscular peasants and workers in factories and collective farms. During the Stalin period, they produced numerous heroic portraits of the dictator to serve his cult of personality all in the most realistic fashion possible.