This was actually a stroke of genius on your friend's part since baby's see contrasts and lines best in the first months. This baby will have lots of things to draw his/her attention.
I too made bumper pads of black and white designs for our grandchild. It works, he loved looking at the patterns! All of those pale greens, blues, yellows and pinks have little or no interest for new babies.
Your work is gorgeous and I would not like to have paid what it is all worth.