Personally, I can't draw a straight line with a ruler. And don't even ask about my curves, they're absymal. I use
Daz 3D. The program is free, they get you with the content.
Here are a few of the pics I've done with Daz.
Alishira for MonkeyFist's Final Fantasy game.
Blue Electron from my Super San Diego game.
Liberty Cross also from Super San Diego.