That's got to be one of the more subversive Christmas cards I've seen. Very clever. I like how the soldier looks like he's thinking "I'm gonna get back in this tank if he doesn't put me down right now..."
Cool, glad you dug it! I'm just starting to get into doing pieces without lines, gotta learn how to use the pen tool now... I thought the soldier would stand out more if he was the only thing with lines, but eventually I'll figure out how to do it better. Thanks for the feedback!