Nice color and terrific, crisp focus, but I can't tell what's going on in this shot. I can tell that the two are teens or just before teen, and, by the title, I assume that they are up to no good. Beyond that, it is really hard to tell what the duo is up to. Your composition is also a bit cramped, with both of your subjects crammed too close to your frame edges. Its also a bit awkward slicing off the right-hand subject's shadow the way you cropped it. Great start, and I like the square crop, but I'd like to know more about this one at first glance.
I think that it is the small splashes of colors in a mostly monochromatic photograph that makes this so engaging. Ofcourse the shadow and composition are also quite interesting. Very nice!