I like the head swap on the greatsword captain.
I'm not a big fan of the original head, and I'm contemplating giving mine a redo because of your model.
I think the lighter of the two photos is better, yet if there was a way to eliminate some of the glare in a fewer of the brighter photos, that might a be an improvement.
By the way, not sure what KF is suppose to look like, so even if your KF on foot doesn't, then my troops wouldn't likely know anyway.
By the way ... I like the knight you used, and wondering where you got that one?