Recently won a copy of A Complete Tarot Guidebook, yet another Japanese book and majors set. In this case, the 22 colorful cards appear to be created initially by photo-compositing, then processed with one or more Photoshop-type filters to give a variety of effects, from vaguely impressionistic or pointillist, to the appearance of looking though wavy frosted glass. This is a technique of which I'm usually not too enamoured, but in this case, some of the cards are quite evocative.
An interesting discovery was that the artist, who goes by the name Nekomata, has a web site whose address is buried at the back of the book. Checking it out, I discovered that he or she has actually created two complete 78 cards decks using this technique, one with completely illustrated minors (type "A"), and the other with unillustrated pips (type "B"). Here are links to them (you can click the thumbnails for larger versions):