This is definatly my best yet.
Took me some time to do this one. I really concentrated and worked on effects. Made a big difference compared to the others I've made.
Tell me what you think.
Lighting and clipping's good, though the contrast and brightness of the c4ds on the edges of the render take away attention from the focal.
They also confuse the flow, which could be worked upon.
I don't really like these types of "messy" signatures. The text is bad on this one, try using a clipping mask and moving it closer to the focal. The lighting is a tad too bright. I cannot see where the flow is directed to.