I have an originality complex.
Commonly I draw without any reference imagery other than what is in my mind. It has it's benefits, and it's limitations. Working from reference is SO important as an artist. Everything I draw is technically pulling from the visual library within, which is just an archive of experiences stored in memory.
I think drawing from the mind is the best way to develop a "personal style" as it is a direct draw from your personal perception. However, using reference images for drawing/painting from life teaches us so many valuable lessons. I am no anti-reference artist or originality elitist by any means. In fact making a habit of drawing directly from reference is one of my current goals as I return to my work and develop a new flow. I simply always encourage artists to focus on generating something original, to leave a legacy all their own.
Here are some of my sketchbook pages from reference.