Brad Bako is an Australian tattoo artist about whom even I can’t say much, his site does not give you more information about his whereabouts.
Very artistically, Bako has converted an arm into a finger by inking a nail and finger wrinkles. He has named his this piece as THE DIGIT, I don’t know the significance of the name but for me art is an eye-candy. His artistic genius is reflected in his other pieces of art and some you can se here. You can email him for you queries and appointments. His email address is at the bottom of the page.
UPDATE: Thanks Breuleux Claire for sharing the valuable information. As told by her, I am able to find out the significance of ‘THE DIGIT’, which is actually derived from a Latin word DIGITUS – meaning ‘a finger’.