I've decided to make a little submod that changes the Dwarf portraits, i just thought it was weird that they were all different sizes/angles. Attached is the three starting characters with custom portraits, Thorgrim, the High King, Ungrim Ironfist, King of Karak Kadrin and Grimagrim, the slayer you start with outside Karak Kadrin. I'll put up the general Generals once i have a good number of them done (probably 15-20).
From Left to Right;
Row 1;
Thorgrim*, Ungrim**, Muradin†, Chaos Dwarf, Long Drong, Garagrim‡, Slayer_1 and Slayer_2
Row 2;
Wife, Son, Daughter, Captain, Slayers 3-6
Row 3;
4 Generals and Slayers 7-10
Row 4+;
Generals and more Generals...
*Thorgrim has grey/white hair in-game because he's in old age.
**Ungrim only has orange hair, old and young, since he actually dyes his hair.
†Muradin, Lord of Miners, Governor of Zhufbar.
‡The Slayer at the start outside Karak Kadrin.
PPS
To install unzip and drop into data/ui/cutom_portraits and overwrite, back up that folder if you like.