With the stiff figure work, I think part of it is an aesthetic choice. I find a certain angularity of pose visually pleasing and often more realistic then dynamic movement. In real life people are stiff and movements frozen in a picture are awkward. arranging awkward limbs creates a different kind of dynamic tension but not one that action comics are really looking for. And if it goes wrong like it did in my submission the negative impact is multiplied.
Steven, I hope you don't mind my two-cents. I think were people are saying things are stiff what's really happening is your work is here is over rendered and too busy - it's hard, for example, see any one thing in the panel because you're over whelmed by everything in the panel. I took the (terrible) liberty of editing a page (sorry!) to show what I mean.
Panel one I isolated the two guys -I haven't seen the script, so maybe I'm working against it, but that sign along with the rendering of the people/building behind the guys took away from looking at these two, so I pared it all back a bit.
Panel 2: There was a weird confluence of factors that kept driving my eye to that cup - I think the two arms were directing the eye, so I moved it. Added shadows into the ceiling to keep you focused on the gun blast and paired back the rendering.
Panel 3: Made the background people more of a smear of people and the foreground guy entirely silhoutte focusing your attention on the dude at the front.
Panel 4: just dropped out some of those ceiling lines that were a bit distracting and paired back some rendering on the suits.
Panel 5: Just tidied up the shadows a little to allow you to focus better on the figures.
Fundamentally nothing stiff about the figures, beyond the rendering. I think if you can keep the silhouttes of the figures simpler and render only where absolutely neccessary to indicate fabric/shadows etc it'll make for stronger work.
There is some truth to what Jimmy Bakers Assistant had to say. my work, even at it's best, is not really what 2000ad are looking for. My natural inclination is to work in a less dynamic more illustrative style. If I want to successfully submit I need to work against that and that takes a lot of practice.