Original: As a devout Orthodox Christian , he did not accept the Bolshevik Revolution but remained in Russia until his death , painting the portraits of Ivan Ilyin , Ivan Pavlov , Ksenia Derzhinskaia , Otto Schmidt , and Vera Mukhina , among others .
Simplified: As a devout Orthodox Christian , he did not accept the Bolshevik Revolution but remained in Russia until his death , painting the portraits of Ivan Ilyin , Ivan Pavlov , Otto Schmidt , and Vera Mukhina , among others .