Is it possible to create concert banners for foreigners in Hongdae naturally?

Hello! It's been a year since I came to Korea, and I'm currently making concert banners in Hongdae. I'm struggling a bit because I'm writing in Korean. I wrote on the banner, "I'm bisexual because women and BTS exist~", and I'm wondering if this sentence sounds natural. Does anyone have a similar experience? Korean still feels awkward to me... I tried using Google Translate and asked my friends, but it feels like something is missing. Everyone is so busy, so it's not easy to get help. Please give me some advice! I would really appreciate it if you could let me know if there are any ways to make it sound more natural or good expressions.