Anatomy Practice

Spent my Sunday practicing some anatomy. I really want to get better at this, need to try and do a bit everyday, even if it's just 10 minutes or so. Been looking at a load of tutorials on deviantart which I've found really helpful. I also came across a concept artist called Kevin Chen who creates figurative drawings from a range of basic shapes. His stuff is amazing...if only I could draw like that from my mind without reference material. If only...