sinksin's sketches

[denikina]

Nice studies!

If you want to know more about drawing heads and human anatomy I strongly recommend Loomis and Hampton. Those explained the rules really well and they are very helpful. :)
Hre are some pics from Loomis:

http://media-cache-ec0.pinimg.com/736x/6...88874b.jpg
http://media-cache-ec0.pinimg.com/736x/f...2e6a6e.jpg
http://media-cache-ak0.pinimg.com/736x/1...b678f4.jpg

+ some other study sheet

http://37.media.tumblr.com/tumblr_luobfx...o1_500.jpg

I hope that helps :)