nope, its locked
if you choose the 1st set, all the portraits are locked to the 1st in the row
if you choose the 2nd set, all the portraits are locked to the 2nd in the row
Pretty sure the player pics for NPCs were from the early sins beta that was never realized. The only npc picture used is the pirates.
Areolian Sector Map Player section uses all tech as mentioned by Goa
the values where 0 should be able to go 0 thru 9 for a total of 10, but that means editing every map you play even if it works.