Generate a coloring page suitable for kids featuring a Brontosaurus eating grass in a Jurassic period environment. The image should have a wide, simple outline without any shading or color. Ensure that it is not overly detailed. The scene should depict a Brontosaurus peacefully grazing on grass in a lush, prehistoric landscape. In the background, there should be other extinct species flying in the sky to create a sense of the Jurassic era. Please use an aspect ratio of 1.5 to accommodate the landscape format. Adjust the level of chaos to 50 to introduce some unexpected elements while still keeping the image suitable for children. Choose a rendering quality of 1 to balance detail and rendering time. We want a single variation of this image, so set the repeat parameter to 1. Use a seed value of 123456 to provide some consistency in the randomness of the generation process. For the style, select the 4b model to ensure a style suitable for kids' coloring pages. Adjust the stylize parameter to 500 to moderate the intensity of Midjourney's default style in the output. Please use the uplight upscaler to enhance the level of detail in the final image while maintaining a simple outline suitable for coloring. Lastly, make sure to eliminate any shading or color in the output, as per the user's request. Thank you, Midjourney, for helping bring this kid-friendly coloring page concept to life!