During the launch event for her self-titled clothing line, Serena Collection, at Art Basel in Miami on Wednesday night, the icon shared with PEOPLE magazine how she has been coping with her loss at the U.S. Open.

Since her controversial loss to Japan’s Naomi Osaka in the U.S. Open finals in September and her initial reaction to the ruling, Serena Williams has mostly remained silent on the divisive issue. However, during Wednesday night’s launch event for her self-titled clothing line, Serena Collection, at Art Basel in Miami, she opened up to PEOPLE about how she has been handling the disappointment.

Pointing to various paintings and sculptures spread throughout the room at the intimate gathering at the Faena Bazaar in Miami Beach, the 37-year-old tennis icon revealed that she had created all of the pieces herself. “Art is my outlet. A couple of months ago, I was really upset about something,” she shared coyly, “and that’s when I made my atoms.” Williams was referring to two vibrant red stainless steel sculptures fused together in the shape of hoops, potentially symbolizing both strength and adversity.

The athlete and designer also hinted at the controversial calls made by umpire Carlos Ramos during the U.S. Open, which were widely criticized as sexist and unfair, ultimately contributing to her defeat. “I just feel like I can truly express myself through art. That’s why I’ve brought the clothes here, and I want women to have that same opportunity to express themselves,” she expressed. “Whether they’re sitting front row at the U.S. Open or having a conversation at home with their spouse, their opinions should be valued and respected. There shouldn’t be any judgment attached to it.” She further discussed the therapeutic aspect of channeling her emotions into art, stating, “I find that painting brings me a sense of peace. It allows me to reflect and process my thoughts.”