|very rough sketch!|
I've got to get better at drawing people from my head if I want to get any faster with illustration. I'm a little better than I give myself credit for, but a long way off from where I want to be. I still think reference pictures are the best for complicated poses (and always for faces for me). But they can also be a crutch and slow me down. I'm still learning how to transition from fine artist to illustrator. (While maintaining quality and being consistent with my style... Not an easy task.) It takes a lot of practice.
I don't think I'll use my illustrations for my book for my daily drawings much... (not knowing the "rules" is a bad thing) but I might throw some in sometimes. (especially when I get no other drawings in that day, because of all the work I did on an "official" illustration).