I was planning on answering your comment under my video, but it was removed...
Anyway, the answer to your question is yes and no. For the Sebastian and Ciel drawing, yes, I did use a reference because I am unfamiliar with those characters since I have not seen the anime they're from. To answer your question briefly: I do use a reference when I do not know the characters well enough to draw them from memory. But other then that, no, I try not to reference unless I'm drawing a portrait. And I'm glad you asked... yes, i do have original characters! Please check them out and the first couple of pages of a manga i'm working on by following this link: http://jtrudy808.deviantart.co­m/

Sorry for this extremely long message, I usually don't write this much, lol ^_^;
Hope this helped! Thanks for subscribing and complementing my work.
Have a good day~! :)