Complex sentence: In 1994 Heijermans showed hundreds of oilpaintings, watercolors and etchings in Singapore Singapore, were the Singapore Newspaper under "Highlights" gave some notoriety to the European artist.
Split into simpler sentences: In 1994 Heijermans showed hundreds of oilpaintings, watercolors and etchings in Singapore Singapore. The Singapore Newspaper under "Highlights" gave more notability to the European artist.