Experiment with air pressure vs. paint viscosity vs. nozzle size. As Brad posted you might also try the idea of pulling the trigger back a few times without air then blast with air at LOWER air pressure than normal. Lower pressures don't atomize the paint as much. Less atomization = bigger droplets. So don't use higher pressure with the stipple/splatter technique or your dots get too small.
The trick to large spatter:
Super low air pressure (the lower the pressure the bigger the dots). Also when doing large stipple/splatter at extemely low pressure it's best to have your work flat on a table because at low pressure the paint isn't going to spray like you're used to. Hope this helps.
is a very good bleeding effect. Sometimes over thinned red applied carefully along the gill edges makes for a very nice wounded prey effect, too. You're off to a great start...I would definitely fish any one of your lures. Thanks for posting your work.