As women's body shapes nowadays are generally becoming more well-developed (i.e. more S-shaped) compares to the 60s or 90s generations, this raised our curiosity on finding out the development difference on women's sexual secondary characteristics between those who grow in the 60s and the 90s. We investigated the issue via analysing the data of women's secondary sexual development (e.g. average age of first sign of breast, average age of onset of menstruation, etc.) extracted from a research done by CUHK. Three installations are made from the data obtained. The first one is produced by combining the data of women 's breast development in various year and the GDP of Hong Kong. The second one is produced by incooporating the data of first sign of breast and onset of menstruation. The third one is a 3D poster which demonstrates  an extreme case of breast development in the 60s and the 90s. All of the installations are created to show a cross-generational trend on their secondary sexual characteristics. This is to create an general outlook on evolutionary pattern on women and thus responding to the topic evolution in modern society. Audiences are expected to reflect towards the issues and we predict that the trends we shown via the installations will keep going while following their own patterns.