I like the idea a lot, taking the theme literally, the triangle, the "emergency exit sign" type of figures, and the simplicity. However, I am not too convinced with the choice of color.
If this were my design, here's a couple of things I would experiment with:
- different t-shirt color (laid back, not too flashy - cranberry? asphalt? could be really cool with white symbols on it. or navy with yellow symbols?)
- making the triangle less obvious (e.g. only keep the angles and eliminate most parts of the sides as a "hint" to the trinity)
- using a different color for every figure
- placing the figures outside of the triangle
Note you may submit multiple designs. Like if you really think you have an updated design that is thousand times better than the current one, just upload it as well, as long as you don't flood the page with too many designs. After all, you want to get a large amount of votes and too many submissions from you might decrease the chance that "most wooters" would choose the same submission for their votes.
Good luck!
