I had to push Mondrian really hard in these multi-prompts to get Midjourney to use him as well. That was unexpected.
Image 1: Landscape under a Stormy Sky, 1888:: by Mondrian::3 --ar 2:3 --style raw
Image 2: Landscape under a Stormy Sky, 1888:: by Mondrian::2 --ar 2:3 --s 50
Image 3: Landscape under a Stormy Sky, 1888:: by Mondrian::2 --ar 2:3
Image 4: Landscape under a Stormy Sky, 1888:: by Mondrian::1.75 --ar 2:3
Image 1: Landscape under a Stormy Sky, 1888:: by Mondrian::3 --ar 2:3 --style raw
Image 2: Landscape under a Stormy Sky, 1888:: by Mondrian::2 --ar 2:3 --s 50
Image 3: Landscape under a Stormy Sky, 1888:: by Mondrian::2 --ar 2:3
Image 4: Landscape under a Stormy Sky, 1888:: by Mondrian::1.75 --ar 2:3