Mental exercise, pick my models!

Hi there! Just coming back since early mkii! New to Trollbloods, and I need some help finalizing a trade I'm working out! I read the starting Trollbloods thread, I'm leaning towards Storm of the North theme since it seems the most well rounded (and pretty strong unless I'm wrong!) I thought the models I chose fit well, and could help lean me towards Power of Dhunia for my second list down the road! Here's what I'm thinking of choosing;


Borka 1
Grim 1
Grissel 1
Madrak 1 (already owned him)
Mountain king
Rok
Mulg
Extreme mauler
X2 Impalers (already owned these)
Axer (already owned this)
Fire eaters
Krielstone bearer x5
Trollkin champions x5

Here's what I have available to choose from;

Grissel1
Captain Gunnbjorn
Grimm1
Grimm2
Borka1
Borka2
Ragnor

Mountain king
Dire troll mauler
Mulg
Rok
Earthborn dire troll
Dozer & Smigg
Slag Trolls (4)
Winter Trolls (2)
Pyre Troll (Plastic)
Pyre Troll (Metal)
Night Trolls (2)
Axer
Bouncer
Impaler

Fennblade kithkar
Fell Caller Hero
Janissa Stonetide
Champ Hero
Stonescribe Chronicler
Skaldi
Braylen
Stone Scribe Elder
Horthol, Long Rider Champion

Krielstone Bearer & Stone Scribes
Pyg Bushwhackers
Scattergunners (2)
Scattergunners UA
Highwaymen
Thumper Crew
Runeshapers
Kriel Warriors - Leader & 9 Grunts
Krielstone Bearer & Stone Scribes
Northkin Fire Eaters - Leader, Trollkin Grunt, and Pyg Grunt
Pyg Burrowers - Leader & 9 Grunts
Trollkin Champions - Leader & 4 Grunts
Trollkin Warders - Leader & 4 Grunts

Did I choose well? Is there anything I should swap out? Thank you so much in advance!