I tested a technique with skin modifier to create a basic basemesh. This is the result.

Feel free to use it.

Practice sculpting on it or whatever.

It's missing hands and foot. 

Made with Blender.

Apply modifiers to further edit the mesh or edit vertexes with ctrl + A.

Edit:

I made version 2. Head mesh loops made by https://blendswap.com/blend/10840.

Everything else made by me. Everything is CC0. 

Very primitive Metaball mesh hands included and foot.