06-28-2013, 09:37 PM
Cool stuff, man. One thing that I'm noticing is a lack of saturation in your midtones where there normally would be. This is most likely due to using a brush with opacity as well as using the color picker, which has a nasty habit of grabbing desaturated colors. One thing I've started doing is to paint without any transfer at all, to lay in all of my colors and values in big chunks at first, then as I refine I turn on the brush sensitivity to lay down midtones. If anything, it's a good exercise, especially if you do numerous small thumbnail studies.