The Two of Cups opens the Cancer decans in the water suit's zodiacal sequence, Venus ruling the sign's first ten degrees before Mercury takes the Three of Cups at Cancer's second decan and the Moon the Four at its third; Venus at the very start of the water suit's zodiacal run is one of the more thematically direct pairings in Book T, the planet of attraction governing the suit's own first card of mutual connection.
Pamela Colman Smith's picture, a man and a woman facing each other and exchanging cups beneath a caduceus crowned by a winged lion's head, is unusually dense with symbolic detail for a two, the caduceus specifically borrowing Hermes's staff of reconciled opposites rather than any element native to the cups suit itself; it has no equivalent in the Tarot de Marseille, whose Deux de Coupes is two ornamented cups facing each other in a formal arrangement, read by cartomancers from number and suit alone, without any figures, caduceus or winged lion. The lion's head above the staff is generally read by commentators as marking desire tempered by higher union rather than simple romantic attraction, a reading the bare Marseille card, lacking any such symbol, cannot support at all.
The Golden Dawn and Thoth titles agree exactly, both Love, one of the small handful of cards where Waite's occult source and Crowley's title converge without alteration; Harris renders the two cups as a balanced geometric pairing under Venus's glyph, keeping the caduceus motif but dropping the two human figures Smith gave the scene.