I´ve just recently started to study more detailed anatomy, so I´m glad to hear my efforts are bearing fruit already. ^^

Thus far, I´ve been relying mainly on Andrew Loomis´ "Figure Drawing for all It´s Worth", a somewhat old-fashioned but very comprehensive self-study book that is still considered a good introduction to the fundamentals to this day.
More broadly, the study of references is always a good way to get a feeling for the shapes and lines that make up an anatomically solid drawing. Ideally, one should use line-art only pieces for this purpose, photographs and images with a lot of shading gradients are not the best choice.
Aside from that, the only tip I can give is to practice a lot, try and sketch from life and not hesitate to copy pieces that strike you as particularly well-done, especially classical art or works you personally enjoy.

But then again, who would fund a project that just ends up turning people into big happy moos?