Outer Space - Jack Venn

 Here we have where Jack added in an exterior to the map the player occupies, two skylights open up to 2 different suns in the far distance, one being red and the other being blue with some floating bodies out in the foreground.

the difference outside each window implies that the each window looks out to a different point in space, as no suns could normally exist as close together as these ones seem, working more on the space-warping non-Euclidean geometry shenanigans happening.