Technique in tattoo

Im in the process of planning a large body of work which will involve the tricky task of painting tattoos. While scrolling through Instagram the other day I happened upon this image of Grimes, an electronica musician for those not in the know (including me!). 

A good image to have a crack at tattoos! Here's how I got on...

'Beautiful Grimes' 2015, oil on board, 300 x 200mm Available for purchase.