I've been making a Log Cabin for my DS and his GF and I'm stuck. Here is a single block. The middle square and the background behind the block will be the final border. This is what they want. But I don't know what to do for the 1st and 2nd borders

This is the quilt top so far. I need to make it King size. I need help on deciding borders no 1 and 2. Help! Please! What colours do you suggest? I was thinking border 1 black and border 2 cream??????
