Examples to describe the delivery would be: "well pitched-up delivery", "ball delivered on a good length", etc, which describe how close to the batsman's end of the wicket the ball has landed. Something can be well pitched up and still get smacked by the batsman to the boundary.
If you hadn't come across the following already:
www.cricinfo.org, which provides ball-by-ball text commentary of matches (example of a past one:
http://www.cricinfo.com/ausvwi09/eng...iew=commentary )
For a examples of writing about things in the game of cricket itself rather than the specifics of a particular match, there's a cricket writer called "Peter Roebuck" that seems to write in an interesting way.