Alien Invasion Sketch

This is the second sketch in my "Doodle Book." It's an alien invasion.

Today I decided to color the sketch. I've experimenting with a lot of different coloring techniques, and I'm trying to find the coloring style that I'm using for Wormhole. I like how this one turned out.

There were actually two pages for this entry in the book. This is what the first page looked like.