This study investigates contemporary fashion design strategies aimed at achieving silhouette harmony across diverse female body types, with particular emphasis on proportion, visual balance, and inclusive design practices. As the fashion industry increasingly recognizes body diversity, understanding how specific design elements influence perceived shape, proportion, and overall aesthetic balance has become both a commercial necessity and an ethical responsibility. This research examines key techniques, including directional line application, strategic color placement, textile behavior, and advanced pattern manipulation, to evaluate their effectiveness in visually harmonizing different body forms. Using a practice-led methodology supported by systematic visual analysis and controlled design experimentation, the study assesses how targeted garment construction strategies influence fit perception and silhouette balance. Particular attention is given to structural and visual techniques that create vertical emphasis, redistribute apparent volume, and establish focal points appropriate to distinct body characteristics. The findings demonstrate that the integration of aesthetic design principles with functional garment construction significantly enhances silhouette harmony while supporting inclusive and body-responsive design outcomes. This research contributes a structured design framework that enables fashion designers to apply evidence-based strategies to improve visual proportion, enhance wearer confidence, and address the growing global demand for inclusive and personalized fashion solutions.