Girls: any ideas about how to punk this dress up a little?

Blueswan • 🏳️‍🌈 (Pan/demi, she/they) A smart feminist who writes, sews, cooks, etc. kundalini/Sikh follower, and hopefully successful college student. ADHD/anxiety
I love it and it looks good, but I want to tone down the 'girliness' a tiny bit. Normally, I would use a guys belt, but the waist detail rules that out.