Her Modern paintings in the 1930s were described by critics as brave and pioneering, but were quickly derided as degenerate art by the Nazis after they took power.

Šimerová's early Modern works experienced a return in popularity in the 1960s, and at that time she also began experimenting in the medium of collage.

The social idea finds much better promotional means in photomontage, film, radio, theater and literature".

Her first husband, František Šimer [cs], was a well-respected doctor in Bratislava and later Plzeň, who supported the Resistance against the Nazis, until his arrest in 1942 and later execution.

[2] Šimerová received the Order of Tomáš Garrigue Masaryk, 4th class, in 1991, awarded by President Václav Havel.