I was messing around with Aperture when a look developed.  This soooooo feels Patrick Nagel like.  No doubt, I'm not the first to stumble upon the look.  What does the wise hive-mind of MM think?  (Note, it's all Aperture.  No photoshop).

You can do the same or better in LightRoom.
I have a bunch of saved out settings in LR. There are a lot of artefacts when you hack the images this way but for fun it is amusing.

I had posted one example on MM but removed it soon enough as the look becomes old quickly.

Well, the model is very "Patrick Nagel," however he used flat colors.  You don't see any soft edges in his work.

It doesn't look Nagel to me unless the skin is stark white