For both best-work finished art piece and nice colored doodle. Working on my best art, I'd think oh I can finish this in 4 hours or something, then 4 hours pass and I'm just done with the lineart :,) My guesstimate for me personally would be 8-12 hours total for my best art, then less than 4 hours for a nice colored doodle. Anyone that works really slow or really fast? If so, what makes you draw so fast/slow?