don't do blue. it is assosiated with death. if i remember right from when i was in school. there was a radio about 50 years ago that was a color and it went to china and was not well accepted because it was blue i think.
I would look at the due date and maybe add something about the colors and numbers and animal for the month of birth. you could do this with embroydery on a couple of the blocks or you could go with a very american style quilt and do something like a log cabin or one that makes a very pretty picture.