It's all about Perspective

Drawing in the right perspective can be tough unless you've got a "formula" or a "recipe" for how to do it.  Ever wonder how artists, architects, and engineers get a drawing to look more like real life than a drawing?   It's all about perspective.  Are you looking from a worm's view, bird's view, dog's view, mouse's view, or a human's view?  There's so many different ways to look at the world!

Image from http://www.watercolorpainting.com/perspective_1_2_3_point.htm

Generally speaking, there's three "point" perspectives:  Single, Double, and Triple.  With Single Point Perspective, you pick a point on your horizon.  All lines going up and down go up and down perfectly straight.  All the other lines, however, meet together at that one point, also in a straight line.  It's sort of strange when you're drawing it, but when it's all finished up, it looks right.  :)

Image from http://www.watercolorpainting.com/perspective_1_2_3_point.htm

Double Point Perspective follows the same idea, but you split your image in two.  So, you pick two points on the horizon you've chosen, then decide where the middle of your piece of art will be.  All horizontal lines that are on the left of the middle come together at the horizon dot on the left.  All horizon lines on the right of your image meet at the spot on the right.

Image from http://www.watercolorpainting.com/perspective_1_2_3_point.htm

Three Point Perspective is where you start getting into who's view of the world you're looking at.  Basically, the difference between Double Point and Triple Point is that the vertical lines (the ones going up and down) don't go up and down, they meet at a tertiary point.  If that point is in the sky, the point is called the zenith.  But if it's in the Earth, it's called a nadir.

Bob Ostrom, on Jerry's Artarama made a video to teach a good way to do it: Three Point Perspective.