Complex sentence: In 1834 Wyatt held an exhibition of his works, the centrepiece being Bashaw, which was described in the catalogue as'the most elaborate (portrayal) of a quadruped ever produced by ancient or modern art'.
Split into simpler sentences: In 1834 Wyatt held an exhibition of his works with "Bashaw" as the centrepiece. It was described in the catalogue as'the most elaborate (portrayal) of a quadruped ever produced by ancient or modern art'.