oh i like this style, the free flowing pen guiding by a free-flowing mind or soul or whatever you like to call it. For me, the idea of "perfect" and "imperfect" don't really come into it. Looking at a drawing like this, my eyes flow around with the lines and the form of the figure sort of coalesces from among all the various combinations of lines. Looking specifically at any particular stroke of the pen kind of freezes it and then it loses something, the dynamism stops and it maybe looks a little "messy". But then back into the flow and that wonderful dynamism reappears. So for me maybe "static" and "dynamic" instead of "perfect" and "imperfect" are more useful words.