I've recently added the Turtles to my 80's cartoon art blog and was scouting dA for art when I came across this sketch of Leonardo by user bustrucket.
I really like the style and, since I was looking for something to add a splash of colour to, I asked Rick if he would let me have a go. He kindly agreed.
The plan was to keep *mostly* to the proper colour scheme but with a few adjustments to make the colours as unique as the sketch. Hopefully I've achieved that.
Colours added using my iPad with Sketchpad software and Griffin stylus.
Don't forget to check out the original sketch - [link]