T-Shirt Design for Conference

Hi, We need a t-shirt design made for our internal cybersecurity conference titled AristiCon 2026. I have attached the brand guide for certain colours and logos. As for the themes,, we have two possible themes - "Secure your Shizzle", or "Mind your own privileges". One of our team members generated some potential concept art using AI which has also been attached (please don't just copy these, it was mainly to get the ideas rolling in our team). For reference, I have also provided last year's conference design mock-ups as well as the actual t-shirt design that was printed (ignore the crumpled t-shirt!). Some things to bear in mind - I don't want the design to be overly complex. If the theme could be incorporated somehow (either title or integrated into the design). I don't want it too messy. It should look relatively clean and not complex. It should also look good on a t shirt :D