Right now, its pretty busy and the viewer is not certain where to focus their attention. Consider having the elements all point toward a particular element in the design, say the bomb or logo. Also, having the characters look at the element you choose will draw attention to it. Have the logo stand out more by using different colors (and dont use bauhaus font).
Why cant you make more! if you need ideas here you go, Have that dude on the side in a throwing action and the bomb coming out of his hands then have "explode 'em all underneath the bomb area and going through a bit of the dude.