This big bruiser is from Four A miniatures and aptly named as Bandaged Head on the site.
A heads-up for those that may not be familiar with range.
He is LARGE, standing at 39mm tall!
That is a 40mm MDF base that he is standing on.
Makes for an excellent Flesh Golem or similar type of construct.
Thinking about it, it could be a naked Space Marine, if anyone was thinking of doing something along those lines......
It takes to paint really well, and this was my attempt at trying to reflect the image portrayed in a diagram I saw of muscle structure at my osteopath's.
Not sure it worked, but I am pleased with the result.