This two-part series was originally conceived as "Teen Titans/Doom Patrol," and the pencil pages still bear that designation. The page backs contain pencil preliminaries in mirror image from the final tight pencils.
The Convergence story riffed on "Secret Wars." On this page, the two teams get instructions about their upcoming fight, and see pictures of their opponents projected on the interior of the force fields surrounding their respective cities.
The first pencil panel suggests that art from previous stories be added to some of the hexes, but as you can see from the published image, that did not happen. The large bottom panel has artistic continuity of the force field between the left and right pages, despite the two teams being in different locations.