I think the idea could be a little bit better executed. Maybe try to make the machine smaller on your mock up cuz right now looks flattened horizontally, you know what I mean. Oh and, you should try with a halftoned or b&w background to go with the concept of your design. I like how it looks on maroon shirt. I’m gonna vote for it, I think you can make this one stand out more. Keep it up! cheers.