clothing and folds tutorial by juliajm15
Male Reference for Drawing
A Bloody Tutorial by Sythgara
How to draw a rose tutorial by cherrimut on tumblr:
"Done in Paint tool SAI - you can do that in Adobe Photoshop too but for glowing use layer with VIVID LIGT" <-- I've seen some great work done on SAI.
Hair Step By Step Tutorial (Paint Tool Sai) 2 by FleNB.deviantart.com on @DeviantArt