Rrrrrright then. Starting from the bottom:
The newest tag is kind of lacking in a normal focal. The way in which he is completely black and the outside of him being bright draws my eyes to the outside due to him being completletly featureless and boring. Hot effects as usual from you. Great use of the biolumenese c4ds as well :P.
I'd of loved to have seen a bit of colour variation in it as well.
The fact that he is featureless makes the tag lack depth as well, it makes him look completely flat.
*Shall continue after dinner*
I love your use of darkness to accentuate the focal in your latest tag, really a unique sig. The background, however, is pretty lame and bland, pretty low-quality as well (heavy blur by the look of it).
Also, GRAJAHGFASKJHFDGKASJDHDFGKAJSHDF FUCKING BORDERS ADD THEM TO YOUR TAGS
That sig is fantastic, but the focal looks a tad oversharped.