Well, the render was replaced because it had that merely noticeable white edges. So that's bad itself. Other than that, The text is cool, i like it allot. Bubbles is not my favorite C4D of all, i rarely use them, and i suggest you never do as well. Lighting, when i started to learn how to master lights i started with the exact same way, huge white brushes and brush a whole part of the signature ^^ lol
KIU