dear andrew, whats up man ! your last shot is a masterpiece over again. just a couple of botherations :
1. the cloudish art the on right is a bit distracting.. we can wash it out in PS, guess it would look better then.
2. right cheek of the subject is overexposed.. I'll share a little suggestion on what we do for strong strobe lights, if we dont have diffusers. you take a good quality sheet of white paper, oil it uniformly (taking care it doesnt get absolutely drenched and torn though) and let it dry for atleast 30 mins. you use it infront of the bulb then : it works out wonders.
(here's a tip : if you use a yellow strobe, putting a custom made diffuser infront of it gives you a seaside-sunset golden tone : that looks awesome!).
you can also control the intensity by putting up two or more such oiled diffusers for brighter or darker shades. if you're out of oil or paper, just put up your white t-shirt or a simple white paper infront of it ! (bringing the sheet closer to the bulb increases and taking it away decreases the intensity of light).
do try these out for a change, promise you'll have great photographs.
3. try throwing a bit of exposure onto the cross on the chest the next time. would look even cooler.
let us have more great pictures ! all the best ~*