They look good! but you can emphasize the differences even more I think

for instance, it's sort of hard to see that the toned female is toned... even though girls generally get smaller muscles than men, they do bulge a bit too. I look forward to seeing them shaded
Thank you for the feedback Dreamer! ^_^
I've made several alterations to the line-art since my last post, particularly to the toned female body, and I've also started on the heads.
Though I haven't colored beyond the base color yet, I'm hoping to make several more face alterations before I do.
Question: does anyone think I should draw in the left arm?
My original intention was to have it hidden behind the body, and only emphasize the sleeve on the outfits where it would show, but I'm not sure if I should go that route.
Here is the current wip for the bases:
And some of the alternate faces that I've been working on:
