Hey Apex, I've locked your previous thread
to keep your artwork in one place. If you need to update in the future, edit your original post with the updated stuff, then make a new post saying "Update" by clicking the "Post Reply" button or using the "Quick Reply" area at the bottom of the page. This will bump your topic to the top, and people will see that you've updated.
The artworks have nice glow effects and colours. The concept on the bottom drawing is interesting, with the shadows showing their true intentions. You could draw better stick-men if you used the line tool, because they look wobbly at the moment.
Also, if you want to post images it's better to use an image hosting site like http://imgur.com/
where you can upload there, copy the url and paste it in your thread. That way you won't have the attachments box containing everything. If you need further advice on how to do this just PM me.