Pinkoi is an online shopping platform created in 2011, and its main specialty is trading products with original designs from artists based in Asia. It is one the the few platforms that emphasizes its overall appearance and sets strict restrictions regarding the materials uploaded by the vendors, which is the reason why we choose this platform as our research target. This research is conducted using questionnaires created by the AIDEES model. The result of our research shows that there is a significant effect from the platforms regulating the product pictures on the final purchasing decisions of customers. If the product picture has no words, high resolution, no filters, and it is taken realistically based on the platform regulation, the customers are more likely to use the products immediately and enjoy the purchase. Moreover, the customers will share this product to others, increasing its marketing reputation.