These two are my favorites.
For the first one I really like how you've put the effects equally on the either side and they match in colors well. Major improvement with text on that one, and I really love the little light coming from the middle there.
As for the second one, I think the blue C4D should maybe have been left out- the feel of the signature is more textured and warm, and any C4D would likely throw that off. If you've added those effects around his shoulders yourself, nice job on that! Also, using one large font for one word and then a smaller font for the next almost always works better than one big line of text.
Fantastic job, keep it up.
