(This is not Louis, but still. Check the notes for this post for the source credit)

“ A sketch was all he’d done, a series of bold black lines that nevertheless made up my face and shoulders perfectly, and the color was already begun in dabs and splashes: the green of my eyes, the white of my cheek.  But the horror, the horror of seeing my expression!  For he had captured it perfectly, and there was nothing of horror in it.  Those green eyes gazed at me from out of that loosely drawn shape with a mindless innocence, the expressionless wonder of that overpowering craving which he had not understood.” – Interview with the Vampire