Scaly Rainbow Head-on a mug

I've been doing quite a bit of doodling, but this is the last completed (coloured in) piece which I'm happy with.
I've been using him on a greetings cards to friends - random theme, and some on a charity stall.

Fine line pen (on paper)

Colour: PSP8 - including rainbow gradient effect - which I know is cheating but it really works here (apologies to anyone who protests that I shouldn't be protesting this with "traditional art" in the catergory, because the hard work was done with real ink )

I reckon he's quite lovable.

EDIT: He is now available to buy on the side of a mug! Click BUY THIS PRINT - but really it means BUY THIS MUG