These are some sketches of (some of) the Adobe Evangelists. Are they particularly good? No. But since I'm not a painter, I don't mind. Don't zoom in too much, you'll see all the flaws. I used a reference to paint them (a monitor with the picture next to the painting). 

Materials used: pencils (8B, 2B and HB), black wax chalk and some black acrylic paint for the background