Are you trying to steel my thunder?![]()
I wouldn't try to steel anything because I'm afraid you might call the coppers!

Are you trying to steel my thunder?![]()
The issue, for me, is not finding every potential combo. The issue is, how about one female human who is holding a sword? The closest thing in the whole set is one female eladrin fighter (who does not look human, really).
Assuming you went human, elf/eladrin, tiefling, dwarf, halfling, dragonborn, goliath; made one male and one female each and for each offered an obviously martial character and one character who might be a spellcaster, you end up with 7 x 2 x 2 = 28 figures. They could be more than half-done with the first set.
One figure that is in armor and holding a weapon, and another figure that is wearing lighter clothing and gesturing, could reasonably cover just about any human female character you want, whether warlock, rogue, or fighter.