I feel like the ribbon should be 'spiralling' in the other direction. How does it work in just a solid colour and at a small scale? It's perhaps a bit too reliant on gradients and effects for it's appearance.
Have you posted earlier drafts on here before? I feel like I have seen something very similar before. Anyway, I really like it. I disagree with the earlier comment about the gradient, I think it is pretty much spot on to achieve the desired effect without over doing it. I feel it will also work in flat black and white but just would not be as effective. It is bugging me though, as something about it seems very familiar, don't know if it's an existing brand that it reminds me of or what. Good job though!