One thing I've done when shooting muscle women is not to PHOTOSHOP the skin ... You lose out on definition and it seems to me that's exactly what that niche is all about .. Muscle, definition and poses ... Try to stay away from the Porn poses, find your own .. something that really shows the form and muscles .. rather then try and feminate (not a word really) the model ... keep her strong. Lastly use shadows to your advantage for this type of niche. Again since muscles is the most important part of your image, by using a single light source or by distancing your light sources, you can use Shadows to enhance muscles shape and size ...
I'm not trying to highjack your thread .. but here are a couple of studies I did on Muscles ...
