I learned a lot!! It's hard to remix the right paint colours if you can't finish it all in one sitting, so got lots of practice with that ;) Also, I found that sometimes painting a layer over another didn't work, it took the colour away instead of getting thicker (kind of like colouring with markers on a dry erase board).  Is this from quality of paint? Quality of paper/canvas? Brushes? Technique? I can't wait to try another course!