Love this tat, I've been thinking about getting something like this for awhile. About the back hair, it is so hard to shave your own back, I've tried a few times and bad things happen to good people. I would say he's smart for not trying to shave it, safety first.
This type of work would be difficult to do on paper-stock, let alone on flesh. The design, the various line-work & line-weights all look magnificently constructed. I think you did just a superb job on your model's shoulder and arm. I look forward to spending time with your work online and enjoying my visits. Thank you so much for sharing your talent. This is a real treat! ~ Steve