Yes, Qin Ruisi, or 秦蕊丝 is a good female name. However, if you want a great Chinese female name that sounds natural to ears of native speakers of Chinese, then I will suggest you use another given name 诗. So, this new name is Qin Ruishi, or 秦蕊诗 in Chinese. There are other people whose surname is 秦, for instance, Qin Lan, or 秦岚 in Chinese, an actress from mainland China and Qin Hailu, or 秦海璐 in Chinese, an actress from mainland China.
Here is a picture of Qin Lan.
Here is a picture of Qin Hailu.
The generational name 蕊 could refer to stamen and pistil of a flower. And this Chinese character is seen in the names of Chinese females, for example, Su Ruie, or 苏蕊娥 in Chinese, a Qinqiang Opera singer from mainland China and Yang Ruijia, or 杨蕊嘉 in Chinese, an actress from mainland China.
Here is a picture of Su Ruie.
Here is a picture of Yang Ruijia.
Speaking of the given name 诗, which could mean poetry and verse. In a metaphorical way, this Chinese character could also refer to excellent things, such as, 诗景, which means wonderful landscapes. There are people whose given name is 诗, for example, Macy Chan, or 陈美诗 in Chinese, an actress from mainland China and Liu Shishi, or 刘诗诗 in Chinese, an actress from mainland China.
Here is a picture of Macy Chan.
Here is a picture of Liu Shishi.