The legs are still out of proportion — they’re a little small — and the head is a little too elongated. Try adding in a background image that shows decent proportions and adjust your mannequin to that. Proko has a decent lesson on anatomic proportions you might check out.
Too, if you have a scribd.com subscription (or just want to try the month-long free trial to take a peek), you might check out the classic Andrew Loomis book Figure Drawing for All It’s Worth (which can also be picked up for under $10 in Kindle format on Amazon — a desktop or tablet reading app make it worth the purchase). It’s got lots of great material in it for anatomy, proportions, and the artistic representation of the human form. It will very likely positively inform your sculpting efforts, too.
