The RWS also has the 4 beasts on the Wheel of Fortune.
Ezkiel 10 describes the four living beings stood together, facing in four opposite directions, and between them were four great wheels, each wheel being double, so that it could roll forward or sideways. Thus this angelic chariot, in whatever of the four directions it moved, always presented the same aspect. And both angels and wheels were all studded with eyes. To me this again stresses the interpretation of the four cardinal points.
The United States Conference of Catholic Bishops also have an interpretation of the four beasts:
‘Lion . . . calf . . . human being . . . eagle: these symbolize, respectively, what is noblest, strongest, wisest, and swiftest in creation. Calf: traditionally translated "ox," the Greek word refers to a heifer or young bull. Since the second century, these four creatures have been used as symbols of the evangelists Mark, Luke, Matthew, and John, respectively.’ (From United States Conference of Catholic Bishops) The four creatures may also represent universal creation . ‘ Covered with eyes: these suggest God’s knowledge and concern..
http://www.nccbuscc.org/nab/bible/revelation/revelation4.htm