I did the pencil sketch of this work with friends in a bar on a saturday night. we was all a bit squiffy. I should draw the "perfect" girl.... and that was the result. the bag on her face has no deep meaning, I was just a bit too drunk for drawing a face.
some days later I scanned the finished sketch to coloring it in photoshop. I used the "curves" for an upper contrast. after that I created a new layer and painted with the layer setting "multiply" over my sketch layer. then I added some new layers for the tattoos, lipstick and background font.