Generate a collage in a monochromatic scheme showcasing the aesthetic beauty of line art. This collage could include various components like nature elements, geometric patterns, and non-identifiable human portraits, emphasizing the simplicity and elegance of linear design. Let the compositions be intricately detailed or minimalist, reflecting the wide scope in which line art can be applied. All design elements should be interconnected with an overlapping technique to achieve a seamless vision board-like appearance.