http://gas13.ru/v3/tutorials/
http://manningkrull.com/pixel%2Dart/walking.php
http://tutorialblog.org/pixel-art-tutorials/
http://www.natomic.com/hosted/marks/mpat/
http://www.pixeljoint.com/forum/forum_posts.asp?TID=11299
http://lpc.opengameart.org/static/lpc-style-guide/styleguide.html
http://petesqbsite.com/sections/tutorials/tuts/tsugumo/
http://www.pixeljoint.com/2009/10/03/2938/Pixel_Artist_-_Syosa.htm
http://danfessler.com/blog/hd-index-painting-in-photoshop
http://blog.studiominiboss.com/pixelart
http://androidarts.com/pixtut/pixelart.htm
https://imgur.com/gallery/tFxyX
https://2dwillneverdie.com/tutorial/
http://files.byondhome.com/TheMonkeyDidIt/shading1.html
http://mega.nz#F!sMkgXSyK!XTmJxGaDMWd8mOerP4MEZg