Complex sentence: Ilya Schor was a painter, jeweler and artist of Judaica, and Resia Schor was a painter who later worked in silver and gold and mixed media on sculptural jewelry and Judaica.
Split into simpler sentences: Ilya Schor was a painter, jeweler and artist of Judaica. Her mother Resia Schor was a painter who later worked in silver and gold and mixed media on sculptural jewelry and Judaica.