The Manhattan Projects # 18, page 5 & 7 alternate prelim.

This is a pretty awesome prelim, as it has three of the best comic creators currently working on it.
On top is Jeff Lemire and in the middle is Scott Snyder and Greg Capullo.
Add to that, that this issue (and the entire arc) is a bonkers story of an alien mowing down a bunch of the cast of The Manhattan Projects in a truly grotesque manner, and it becomes even cooler.

The prelim differs from the final pages (see additional image) in a few ways too, as this was split into two pages instead.