Nudes Over Nudes - original mixed media drawings of nudes

As I was taking the photo for this post, I laid the oil pastel drawing on top of the ink drawing and realized - hey I like this! - and since I'm always looking for a way to have my line drawings along with paintings, I think I've found it!  One of life's little happy accidents.  The bottom drawing is brown Sharpie ultra fine on 9 x 12" watercolor paper and the top is oil pastel on 8 x 6" mixed media paper.  Can't wait to combine this technique on one canvas.  Do y'all love making discoveries in your art unintentionally like this?  I'll bet it's a pretty usual art experience for artists.  Thanks for looking!