Finally I’ve managed to start animating this character I’ve been working on for a good while. She’s got a shrinkwrap-based muscle system similar to J.P.Bouza’s Blenrig “Zepam” (many thanks for the inspiration!!!), but with the difference that I did use a rather low poly mesh, and deformed the muscle shrink wrap targets via stretchy bones (for the most part, no shape keys involved). Visible muscular details are thus completely dynamically generated, and not sculpted into the mesh statically.
This has the advantage, that it leaves more freedom to where muscles actually create skin deformation - for instance muscular details may become less visible or completely invisible, if the corresponding body part is in a relaxed state.
The movie clips are a bit too dark - you might need to adjust brightness a slight bit upwards (I’ll fix that later …).
as her proportions seem to draw crits frequently: she is small, and I did intentionally not stick to the current most popular proportions canon (short torso, and thin, barbie-like, much-too-long legs) with her … this said just as a preface. ^^