i havent commented in a while so i will now
the avatar ones, i like the first better. the text ruins it, i think. good render and colors, again.
i adore your recent lady gaga sigs.the only problem i see with them is the text..
the colors on the 2nd one are great, the 2nd is my favorite of the two. the flow is better in the first sig, but it's more dull.
for the 2nd sig, the negative space bothers me on the b-r corner.. and the c4d used only on one side, i don't enjoy it very much.. i think it would be better to repeat the effects you had going on the left side, on both sides. the c4d doesnt fit, for me at least.
anyways your sigs are gettin better looking forward to seeing more.