Drawn entirely in blue crayons. I'm a little sad because my scanner didn't seem too keen on the new medium and greatly killed the shading. Not even darkening it with photoshop did the trick. But meh. The ground and sky were all blue too. And there were light coulds.

It took a lot of resistance not to draw Yoshis XD Oil pastels and crayon always make me think Yoshi's Island.

As stated, all blue crayon.
Darkened to a visible image and given a watermark with photoshop.