How to render entire scene to Syphon?

Here is my patch. It is a little interactive installation that takes in photos from a folder, lays them on top of an iPhone image, and has that sort of dance around a scene with a video happening in the background.

It's easy enough to get the video background to be sent over Syphon, but I can't think of a way to have everything that ends up in the window to show up because of the GL elements. I tried a node object but that didn't seem to do anything. Thoughts?

EDIT: So sorry to post this after realizing my error. For anyone in a similar situation, you must also connect node to any texture objects you are using in addition to the objects that create the shapes that use said textures.