HAWT DAMN! There is a lot of studies going on in here. huge improvement in that Sargent comparison study, you are really starting to pick up the sensitivity that made that man sooo effing great. Only thing I could really recommend but can't for sure because I'm not totally sure on your work process is try and block in all of your shapes with as big of a brush as you can, pick something you think is big and then go 4 sizes bigger. then continually work smaller and smaller, general to the specific. Keep it up, mebbe mix in some more imaginative stuff within the studies, I always like to do something applicable to what I was just studying, so say i was drawing legs one day, I'd sit down after the studies and draw leg monsters with like a trillion legs. It helped tons and was also tons of fun to do. Cheers! and oh, thanks for stopping by my book too!