First of all, let me say I'm totally fond of this design, the main drawing is so funny and the whole glowing ink think is a crazy bonus to it!

Now, I find it pretty ugly that it got printed on a shirt with about the same color as the ink because you can actually see the disc but it doesn't have enough contrast compared to the shirt color. I would recommend it gets printed on a whole different color next time.

But hey, just my two cents!