Complex sentence: They were inspired by the natural beauty of the Norfolk landscape and influenced stylistically through the cultural affinity of Norwich and Norfolk to the Benelux countries by Dutch masters of landscape paintings such as Hobbema and Ruisdael.
Split into simpler sentences: They were inspired by the natural beauty of the Norfolk landscape and influenced by the cultural affinity of Norwich and Norfolk to the Benelux countries. Stylistically they were influenced by the paintings of the Dutch masters of landscape paintings such as Hobbema and Ruisdael.