Digidraw Cover

Hey hey heey :)

Today, I decided to show you my new artwork.
It's my "Digidraw".

This will probably be the cover image of my #digidraw (Digital Drawing) contest. :)
I'd love to see a lot of your artworks when the competition starts.

Here is my work in Adobe Illustrator software, and I decided to gain some basic knowledge in digital drawing.
I would like to hear your suggestions, opinions.

Lines:

Colors:

Shadows and Highlights:

Background:

@dzoji