Dude just 2 points I gotta tell you:
1) Reduce the size of the image- It's too large. I cannot see the picture as a whole.
2) Speechless work. First when I saw the circuit chip background I thought it's very common but as the picture was very big I couldn't see the leaf. But when I saw the leaf------ It was stupendofantabulously fantastic bro. By looking at Know the Unknown in the leaf- I felt so so peaceful.
I shall discuss with the other staff members about your banner. If you can make it better- then even good. We might keep it for some time depending upon the staff decision.