Shading and Drawing Hera's Headtail Patterns

See the finished drawing: http://fav.me/dbvxasc Okayokayokok draws a commission of Star Wars Rebels character Hera and Hera's headtails in a weight gain drawing. This is a sequence commission. More stages of the sequence will be coming soon. Artist Website: https://okayokayokok.deviantart.com/ Okayokayokok Comics Website: http://www.jonrossart.com/index_files/okcomicshop.htm Software used: Photoshop CC Hardware used: Wacom Cintiq 24hd monitor Computer hardware: Win 10 - 64bit, GeForce GTX 750, 16gb ram, i7-7700 (3.6 Ghz)