Complex sentence: In 1915 he graduated to the Salford Royal Technical College (now the University of Salford) where his studies continued until 1925 and where he developed an interest in industrial landscapes and began to establish his style.
Split into simpler sentences: In 1915 he graduated to the Salford Royal Technical College (now the University of Salford) where he continued his studies until 1925. Here, he developed his interest in industrial landscapes and began to establish his style.