All of the infantry are Kallistra figures but I use figures from many ranges. These bands include figures from Romano-British, Saxon, Viking and Norman. All are heavily modified and in some cases with head swaps. I only have one noble infantry completed as I'm waiting delivery of a package from Kallistra. I used armoured troops for this group and armoured up a horn player from the Saxon set.
I don't have any problems mixing figures across the ranges as with time I think the troops took on a fairly homogeneous look any way with troop appearances being similar for all the combatant groups. Only minor differences would be visible in particular shields, hair colouring etc.
As soon as my reserves arrive I will attempt to complete these elements using the same shield design etc.