It’s not a piece of postmodern art. Quite the opposite, in fact. It’s something to make sure the style remains a bit more… old-fashioned?
Perspective is a tricky thing, but a few lines can be helpful. A few dozen lines even more so.
Project S will take place in a mansion, so most background graphics will be rooms. Unlike natural environments, architecture tends to look rather poorly made if drawn freehand. Or maybe it’s just me. Well, at least I don’t have to use a ruler to make all those lines.