This disorder is associated with several vascular, neurological, and skeletal problems including stroke, heart attack, clotting, mental retardation, eye abnormalities, and osteoporosis, amongst many other complications.
Tattoo tipping etiquette, in general, should hover around 15% for small tattoos and 20% for larger tattoos, but as with all tips, you as a customer ultimately determine the amount based on the quality of service and the work performed. Consider your involvement as well.
This is a detailed, medium-sized piece in full colour that would take approximately 5 - 7 hours. The average price for a quality tattoo this size would be $650 to $800 Australian dollars. | Source. This is a full back piece that would take approximately 14 - 18 hours tattooing.