I just finished the rough sketch for a request.
And all of a sudden, I wanted to draw Pinkie. And when I finished drawing her, I wanted to give her some color and shading. So I did.
I still wish I did a more clean artwork for this one(and erased all the construction lines), because it could've been so much better with this shading.
Edit: I didn't like the shine on her mane 'cause it looked too messy, so I erased it.