My father is an artist too. His medium is computers and programming. He's designed a lovely program- which you can find at his site DrawOutside.com
All of the above images were created by Draw Outside- with the help of user feedback. The program starts with randomly generated images and then you tell it if the image is good, bad, or ugly. Then, Draw Outside takes the best pictures and recombines their "DNA" into new pictures.With any luck the resulting children will be even prettier- but you can vote on that too.
Try it out! And when you get to the site click on the big picture and hold down.