For reliable delineation the whole chart requires consideration
for example
Cancer is ruled by the Moon
therefore
the sign and house location and aspects made by the natal Moon
require investigation
Ah ok well the Moonof the Cancer native is in Libra mostly unaspected there by the other native, a sextile between the other's Venus is present with an orb of 3 degrees
The Leo native's Moon conjuncts the Cancer native's Sun with an orb of 4, but the Cancer native's Saturn is opposite this conjunction but from Aquarius, so not a strong opposition.
There is a trine between the Cancer native's Venus/Mars conjunction in Virgo and the Leo native's Capricorn ascendant. Cancer native's Leo Mercury conjuncts Leo native's sun and vertex, Leo native's moon trines Cancer native's vertex. Vertexes are square to each other.
Cancer native's Saturn conjuncts Leo native's True Node.
Generational planets conjunct, natives being only a year apart.
Leo native's Mars square Sun aspect has Mars squaring Cancer native's Mercury and Jupiter. Leo native's Saturn quincunxes the Mercury,Jupiter conjunction.
Cancer native's Moon squares Leo's ascendant and his generational planets which happen to conjunct his ascendant (neptune, uranus, saturn)
That's about it for aspects.
Houses;
Cancer woman's 1st aligns to his 6th just barely as Cancer's Gemini ascendant is in very late degrees (28).
Cancer's 7th house contains Leo's Part of Fortune (in Sagittarius, conjunct Antares) and Leo's Lilith.
Leo's 7th contains Cancer's Sun and Chiron.
Cancer's 5th contains Leo's completely empty Libra.
Leo's 5th contains Cancer's completely empty 12th.
Leo's Mars is in the 5th, Cancer's Moon is in the 5th.