1) To get you thinking about cause and effect (and timing): Ed Piskor on clever single panels at Wizzywig Comics. Remember the criss-crossing of time signatures in this David Lapham panel?
In comics, sequence is time: one can quibble about how much time passes within the panel borders of a single image, but single frames are basically still, animated only by the context the images flanking them provide. But in the vast majority of comics, sequence leads to a total or near-total spatial dislocation. As characters movements in space are tracked in sequence, their surroundings become completely different from panel to panel. Movement is comics is most often accomplished by a flickering through different backgrounds, ones we understand to have some connection to one another, but can’t actually piece together.
3) To get you thinking about grids and full pages: Frank Santoro at Comics Comics. This is about 3×3 grids, which we haven’t really seen, but the idea of “a center image focus” could be useful. Democratic grids are those that insist on equal size for all panels.