I've got six Celtiberians roughed out now, and I'm pretty happy with the heavier types. They connect a gallo-briton top half to a greaved liby-phoenician bottom half and the joins are pretty good.
Three of the six minis need grey stuff to be worked over the join and kilt, that's the next stage.
I'll probably just want one element of 3Bd out of all this. I don't see myself finding 12 more bottoms and 12 more tops for a hypothetical Celtiberian army option.
I notice the minis are roughly OK for a Ligurian element as well, so that's handy.