okay, what's happening in the last panel is Adam swinging his arm to knock out the Bartender, but Mary grabs his other arm to stop Adam, but the arm begins to come off. not sure if I got that across.
There are some decent comic book tricks to help you with scenes like this. What you want instead of that last panel is three smaller panels, each focusing on a different thing that's happening. The first one would focus on Mary grabbing his arm, the second would be the arm starting to come out, and the third would be the fist getting closer to the Bartender, as I presume that's what the logical sequence of events would be.
ok, i'll defiantly remember that, next time I get stuck on a scene like this