Glad to be of some help. I wouldn't bother to trace from the result of the half circle. Your logo is arranged on a 45 degree angle just keep in the vertical & horizontal and nudge the shapes along guides which you should have made till the make your shapes. Then use the right colours on the bottom two and give the top new two colour using Clipping maks then give them a certain amount of Opacity. Then group together and rotate by 45!