Watercolor and ink (first time using speedball pen). It always take awhile for my mind to settle away from critically comparing it to the original. Wanting to be perfect I always want to add and adjust until it's as close as I can get it to the real thing but now after a few minutes away from it I'm delighted with how well it came out.
Here's an interesting comparison, little under a year ago from now I did an in-class assignment of a water colored skull, similar to the one I did today. And as it shows I've changed a bit.