Complex sentence: During this period he developed his own unique Symbolist style, with dynamic, unpredictable lines based on Javanese motifs, highly stylised willowy figures, and curvilinear designs.
Split into simpler sentences: During this period he developed his own unique Symbolist style, with dynamic, unpredictable lines based on Javanese motifs. He developed a style based on a mixture of Javanese motifs with Symbolism, with highly stylised willowy figures and curvilinear designs.