Drawing Fundamentals, hallway

This is the easy, non-observation way to draw a hallway. I've marked the horizon line, put a dot where the vanishing point is, and also put four arrows at the four corners of the hall.

The reason I put those arrows there was supposed to signify that you draw the corridor first by getting your points down and connecting them to the vanishing point. I have no idea why I thought that, lol.

Anyway, sorry for the quality. I spent about 3 minutes on it, but it's just meant to be an example piece.