It's pretty dificult to see what's going on here. Since our focus is on the explosion, the blue line doesn't look as if it were moving. Things in the foreground would help with that. Also, it looks rather odd to have something breaking up the earth and having individual smoke plumbs rise instead of a single large cloud.
Thanks for the feedback. I am planning add a foreground artwork and pan it to the right to make it look like the ground is moving. I wanted to make this scene ridiculous but if I am not getting the response I predicted, I may change it. I will improve all my clips when I do my second attempt. You have some very nifty animation works in your gallery.