Macet probably DOES have scales embedded in his skin and they may have sliced deep; he'll have to get that treated once this is over, though I doubt in the heat of the battle that he feels the pain as strongly as he will later. Right now, all he cares about is that he landed his blow and accomplished what he intended to accomplish with it. Of course, Cardassian scales in that part of the body are much smaller--so tear away a Jem'Hadar one and you've torn away more area than with Cardassian microscales.
It was Arawil that had the orange eyes. Based on Weyoun's and Kilana's eyes, I've imagined Vorta as having much brighter and unusual eye colors than humans tend to have.
And to both of you--yeah, I LOVED letting the Cardassians get their payback on the traitors!