Aerial view of a BOSTON COASTAL marshland expansion depicted as a dendritic diagram, the dendrite being the center of as landfill, intricate branching water systems flowing into surrounding urban and natural contexts and highlighting edges, showcasing green corridors, patches of biodiversity, and integrated urban nodes. Highly detailed plan view, soft gradients blending water, vegetation, and built structures, ecological layers merging with cultural and infrastructural grids, subtle atmospheric perspective, artistic and scientific precision, vibrant greens, blues, and earthy tones.