K, so I’ve taken a first pass on the hammerhead and I’ve noticed some anatomy issues with the sketch. They have the gills behind the fins which they should not be and the bulge around that area isn’t clear to me if it’s the anatomy or the position/angle… so, I’ve just blocked out the anatomy by looking at photo ref, scaled up the eyes to suit the sketch and will focus on that and the mouth for capturing the character of the sketch. Then, as you said, break symmetry, pose and polish…
Not sure if that is any help but if you have any questions or whatever just ask.
