Awehaw (๑´ㅂ`๑) thanks really~ I do think that your line art is good and going in a fantastic direction though! You're doing what I did. I worked on lineart before going in to coloring and sure enough, both processes were a punk! I only just started coloring like that like.. last week (๏д๏)
Anyway, if you've considered referencing human muscles, it improves the lining considerably! You've got a good base already too!