Snap.
The Good: That cover is fantastic. It's a perfect intro to Onomatopoeia. The background is pure uninhibited chaos. Wild soudns all about screaming at you in bright colors. But your eyes are really drawn to the dark simple figure in the center, peaceful for but a single word. 'Snap.' The watercolor blend is a nice final touch, and sets this villain up the be unnerving from the start.
The panel layouts do a great job at setting tempo with repetition. It creates perfect comedic timing in a media that has absolutely no control over time.
Green Arrow, Hawkman, and Black Canary are all written very well. The stupid political arguments GA and HM always get into are starting to grate on the less active Black Canary, but Ollie isn't concerned about the overal status of their relationship. It sets an odd status quo for the pair.
Kevin Smith's arguably greatest contribution to the DC Universe stride in here. Onomatopoeia. A frighteningly unnerving villain. Smith gives us a one-off hero clearly meant to die, but it works very well. Onomatopoeia's been focusing on the lesser heroes at first, building his way up the scale. His villain spotlight builds him as a creepy threat. His mask is a frightening last thing to see, and his completely black appearance makes him almost robotic. And we're not yet privy to his nature. Why does he speak only in Onomatopoeia? How does he actually kill? Is he a metahuman or not? The mystery is very well woven, and the lack of information we have actually serves to make him a more interesting villain.
What is his endgame? He gives himself away and his speech appears to be a compusion stronger than the Riddler's. The final fight of the issue sets an intense amount of tension with some excellent layouts leading into a blood pumping finish.
The Bad: Phil Hester's art isn't bad, but there's a lot of weird spots. Black Canary's hair has a tendency to look odd, and body proportions aren't the best. It's servicable, so it works, but in general it feels like a cheap imitation of Scott McDaniel.
The pacing gets a bit rushed in a few spots.
In Conclusion: 4/5
As a comic writer, Kevin Smith will forever hold a special place in my heart for creating Onomatopoeia. He is a very high ranker among my favorite villains of all time due to the incredible shrous of mystery he wears. It doesn't feel cheap, it's all woven incredibly well to make him infinitely hauntingly unnerving. This is where his story begins, and it's something I would advise taking a look at.