Essentially, this represents the "Third Advancement" in my art style- perspective. The First happened in 1986, when my style suddenly became good enough to be taken halfway seriously. It was very sudden, and did involve environment and characters, as well as coloring to a point. The Second happened after a sort of Dark Age (1988-1993), and occurred in 1997. This dealt with coloring, and it is the reason for my current way of doing this. It also marked a firm return to the "old style," mostly Pardia. This, the Third, happened in the Fall of 2010. Since it was likely triggered by the interaction with fellow artists here- something I haven't had in years (it's isolated here)- as a way of saying "thank you" a tutorial seemed a useful way here. However, what was supposed to have been some basic tips and instruction on one or two vanishing points quickly became something far bigger than I thought- centering, arches, cubes, rectangles, dividing walls into odd numbers, windows, angled gems, pyramids, three vanishing points and even beyond (currently a bit on four, five, and even six are in the works!), gables, distance and size, true checkered floors...almost everything I've figured out is here, too. And more, indirectly. Much of what you may want is here, but in parts. For example, if you want a hallway with evenly-placed doorways, you won't find it here in one place. BUT- there is a part on hallways, AND a part on checkered floors. Proper checkered floors. That tells you how to evenly space the horizontal lines on it. Combine the two, and you have all you need for your hallway with evenly-spaced doors. :) Please keep in mind that this advancement did not occur in neat chronological order. I figured out the checkered floor part AFTER the hallway part, so I did not necessarily evenly-space the segments in the hallway. Good luck with this, and let me know if it helps any!