Start by drawing a matte that will cover the edges of the artwork. Put this artwork on its own layer and move it to the top of the Layers Palette.
Easily make smooth grass using this technique. Using the Pen Tool, draw a slightly curved line. The trick to getting your lines flowing nicely is once you draw point 2 you have to click on that same point once more. In the "Wrong" diagram point 2 wasn't clicked after it was drawn. In the "Right" diagram, point 2 was clicked after it was drawn.
You simply click using the Pen Tool, you don't have to switch tools or anything. The reason you click twice on the same point is because the next point drawn will be directed back toward the top near point 1.
