I started using ZBrush 3 months ago and got a lot of nice things from this forum, going from ztools to invaluable tutorials. I'm far to be good enough to share much yes but I will try nonetheless :)
I bought ZBrush mainly because I had always dreamed of modeling characters and organic forms(in my Ante ZBrush life I mainly modeled buildings and non organic stuff ;) ) so I started learning anatomy and bought the male and female anatomytools.com sculptures and some anatomy and ZBrush books (Scott Spencer's Digital Sculpting anatomy is the one I work with at the moment).
Anyway, to go to the object of this thread now :) I built myself a little Proportion Guide Ztool - 7.5 heads canon - to help me in being more accurate without having to use background images. I tried to make it as accurate as possible to create a human of average size. It is a 7.5 head high guide and also takes into account the landmarks found using the head width.
The ZTool is build with separate subtools to make it easier to hide the lines you don't need and uses "lines" instead of plans because I find those tend to go in your way when modeling :)
Anyway, I really hope it will be of useful for some people (probably more beginners like me). I'm not a professional artist, I did my best to be accurate but I obviously cannot guarantee my measurements are perfect so feel free to correct me if you find something wrong :)
Here is a little picture explaining the meaning of the various lines:
Oh, and btw, sorry for my wacky English :)
