I just recently purchased this deck, and when I looked at the cards, I realized I already owned a deck by this same artist. This is Kay Steventon, who did the work for the Spiral Tarot. As someone who has studied art (as in doing, not reviewing), I fell in love with the techniques she used for both decks. In the Spiral tarot, though, the art work isn't quite as lush on the minors (except aces and court cards); on this deck, the lushness exists on all cards.
The imagery used in this deck is radically different. Every card, and I mean EVERY card, here, is tied to a planet or constellation (and one star). Steventon is both an artist and astrologer, which explains this. In the majors, the cards associated with the signs of the zodiac (starting with the Emperor-Aries) often depict the actual zodiacal sign, and if there's a reference to the traditional image, it's a small sillhouette in the background. Nevertheless, Steventon and Clark work extremely hard to tie the symbolism of the constellation or star used to the symbolism of the card.
Some of the constellations depicted in the minor arcana amused me, as "Crater" (which is a Greek drinking chalice) is used for the Ace of Wands, but the author and artist team do tie it in, with a history of the constellation. The suit symbols are very simple monochrome figures at the base of the card, while the major illustration is a lavish, with bead-gemstone-gold thread embellishments as are the major arcana.
I'm rating this deck at 5 stars for the artwork, but subtracting 2 for two reasons: the "seasons" associated with the four suits are not always the traditional seasons (cups are autumn, pentacles are spring, swords are winter), and I believe there were some twister-like gyrations used in order to fit the constellations used on some cards to fit the "traditional" meanings.