Glad to see you finished the last row. The first Orc in the third row looks great, the depth you've given to the teeth (especially the dark tooth on the top row) is really working. The fingers on the bearded guy in the last row look too short and too even in length. The orange used in the woman's hair seems strange to me, reminds me of Cheesasaurus Rex. There's a tad too much AA on portrait 2's sword. The nose on the elf looks a little off, probably because the nostril seems so high and separate from the rest of the nose. The ear of the Orc on the last row is too close to the face, and the ear of the praying man lacks much of a lobe, which should be a prominent feature on someone his age. The red face paint burns against the blue and green skin, some neutral colored AA might ease this, otherwise I don't know that there's much else you could do without changing the paint color.
Most of this is nit-picking, overall these look great. I think it's clear your pixelling has been improving, this might be my favorite pixel of yours (though I'm probably biased because I played the sh*t out of WarCraft II). kutgw.