Oil: Friend or Foe?

I've been working in oils recently thanks to my painting class at cofc. I'm still not quite sure whether or not I like it more than acrylic paints. It has its upsides and downsides. Some of those upsides and downsides are the same thing, depending on the situation.

Anyways, here are my first few oil paintings that I've done in my class.

And here's an update to an older acrylic painting. Here I've just added a background color and cleaned up the amoeba things in the afro with oil paint.