Between Air and Ground explores the fragile threshold between the atmospheric space above the city and the dense structural field of the urban landscape. A horizontal architectural horizon divides the composition, creating a suspended zone where sky, infrastructure, and urban systems intersect. Linear networks and layered color planes evoke the hidden geometry of the contemporary city, while the calm spatial field below suggests the ground as a silent foundation of urban expansion. Through the dialogue of precise lines and atmospheric painting, the work reflects the tension between structure and openness within modern metropolitan space.