Hey. Now that I think about your concept, it definitely would look good if you replicate the exact lighting. Like the gradient color pattern which is visible. And also, this could be visible when the sunlight hits on the back so the material can be used similar to that. Great concept tbh.
I’m not a designer so unfortunately can’t create the idea what you or I mentioned. There is still 8 days left and I would suggest you to try to find someone who is 18 who you know. Maybe your friend or someone. If not that, go thru other submissions and see if anyone has similar idea like yours and then maybe you both could work together.
Or maybe you might find someone who is looking for a partner. Some time ago I saw someone looking for a partner to take part in this.
All the best man. The concept is good which you came up with. Don’t let someone directly take your idea. I will let you know if I find anyone looking for a partner.