Like a kids works...
It's a limit of draw in mouse. After all I cannot draw it well unless I use pen-tablet.
Drawing video
"SmoothTeddy" is a free tool to be able to draw 3DCG for a sense to 2DCG.
SmoothTeddy
http://www-ui.is.s.u-tokyo.ac.jp/~takeo/java/smoothteddy/index-j.html
This site is written in Japanese only, but may understand if use a translation site.
