Hey, I'm learning equine anatomy too. I'm using this book for the insertions and origins: [ame="http://www.amazon.co.uk/Animal-Anatomy-Artists-Elements-Form/dp/0195142144/"]Animal Anatomy for Artists: The Elements of Form: Amazon.co.uk: Eliot Goldfinger: Books[/ame] From your sculpt it looks like you need to take them into…