Most of my training sessions will look like this. Sometimes i'm in the mood to play with grayscale!
Usually i have a focused area of study and try to concentrate a lot on a specific area/region - which results in these ghastly sections?! They may look a bit strange but i actually like them. Sometimes it even feels like their existence is loading or something like that.
In this case i've been focusing a lot on shoulders!!! the connection of the scapula with the clavicle is an encounter that gives a lot of dimensionality to bodies. I really want to get it right!!!!!!