[Zman]

If you look at the one arm holding the one enormous breast, it's way too long.
If that arm was straight it would reach way below the knee cap, while the other arm would appear as normal. I know it's hard when the girl has super enormous breast,but if you try to draw through the Breast then erase it your proportions will be much better.

Also, you must buy this book, Dynamic Figure Drawings by Hogarth, it will help you greatly with your drawings and proportions. I use this book alot and I highly recommend it to you.

Zman

P.S. I really suk at drawing hands and feet, FYI