Here's a quick little render I did for this DIY periodical called "ColorInk Book". There are some awesome artists with awesome submissions for you to color up! I highly suggest picking one up.
They have a character called 'Rayloa' that frequently an artist's take applied to him. This is my take, with lots of gradient lovin' of course!
Here is the wireframe of the gradients in Illustrator:
The initial sketch:
Be on the lookout for the next issue if you'd like to color up some of my doodles 'n characters!