Looks very good. Helmets. Sheilds. And propper layered cloth or leather armour very effective, flexible. Alot easier than gigantic steel plates all over and also showing that they considered the natural advantage of giants to wear thick and heavy materals that be as impervious to humans in plate armour and such without the insane mass and material cost.
Armour seems to hav excellent movement and not limit them at all. The reinforced boots are a nice touch.
Il give it a good solid pass
Sling is basic but in hands of a faint. It's a more like a seige engine.