These are the images from C.J. Opacek's tutorial that were on the now lost in internet trash Picture Trail
Using the transparent grid is brilliant

[Linked Image from photos.smugmug.com]

[Linked Image from photos.smugmug.com]

[Linked Image from photos.smugmug.com]

[Linked Image from photos.smugmug.com]

[Linked Image from photos.smugmug.com]

[Linked Image from photos.smugmug.com]