A2 + Baby Ultrasound +

Ok this is for the "New Life" chapter in my Art A2 coursework.
A series of ultrasound scans at 1 month, 3 months, 5 months, 7 months and 9 months, I believe.

I went over them with the brush tool selecting the darkest areas as black, the lightest areas as white, and everywhere else as middle tone grey.
A sort of, self made posterise effect, but it looks rather abstract.