Click on this link & watch this video to understand how to create better illustration using perspective grids. I have created some Perspective Grids that are in a PDF format for you to download and use for drawing by hand by printing, and then setting the grid underneath your drawing paper, or for use in Adobe Photoshop or Adobe Illustrator.
Click this link to Victo Ngai's Illustrations. These are some wonderful illustrations that employ the use of perspective.