Here are a few more;
Shark's Headphones.jpg
This one is pencil.
Gravity Well.jpg
Another Sci-Fi dotfest...
Dark Seed.jpg
As is this.
Unfinished 2.jpg
This one exists as a pencil line drawing. I traced it onto this paper and used coloured pecils to get what you see. It's not finished and never will be. The line drawing is much better and this one doesn't do it many favours. It's also quite bland...