modernist create an architectural urban massing proposal for a collective housing development on an irregular urban plot inspired by the attached reference image the proposal should show several residential apartment buildings with varied heights 5 floors 7 floors and 9 floors arranged in a seemingly random but well balanced composition across the site the buildings should not be placed in a rigid grid or strict geometric pattern use an organic free urban layout with slight rotations different building footprints varied distances between volumes and informal public spaces between them the composition should feel like a contemporary residential ensemble with multiple apartment blocks pedestrian friendly courtyards green pockets and open communal areas at least 30 of the total plot area must remain green space distribute the green areas naturally throughout the site landscaped courtyards tree clusters small gardens planted pedestrian paths green buffers near the plot edges and semi private open spaces between buildings use a clean axonometric isometric architectural visualization style similar to the reference image light grey urban context soft shadows pale background buildings highlighted proposed buildings subtle red or warm outlines minimal material detail schematic fa ades trees pedestrian paths small human figures and urban furniture the surrounding neighborhood should be shown in a faded low detail manner while the proposed residential buildings and landscape should be emphasized the design should look like an early stage architectural concept or urban planning proposal not a final photorealistic rendering maintain a clear elegant professional presentation with soft colors architectural linework and a balanced mix of built volumes and green open spaces architecture
