This is just sketch. I like SECTIONS of this drawing but not the whole thing. I got myself into trouble with this one when I couldn't quite figure out what to do with their legs. I was too busy rendering the top and the arms in a fashion that I like, while saying "I'll get to the legs later." And then it got to the point where I needed to make design decisions about how the pose is grounded into the floor and I couldn't find many good solutions.
So basically the lesson is, plan ahead before you start laboring over one section. Do the whole thing, then refine.
Try to get a complete drawing right at the start, then stress the details.