Heracles Picture

My friend wanted a tattoo of Heracles, depicted as mythology (and ancient greek artists) would: wearing the Nemean lion as a headress and carrying his club.

This, obviously, wouldn't make a regular tattoo, but I wanted to get some ideas down first.
Cancer - Zodiac Ephemeris Project
Zeus Sketch Card - Matthew J Fletcher
The Mythical Kingdom
Erymanthian Boar