Yikes. 1/1? Sounds like you need a bigger flash/monolight with a power pack. Would increasing your ISO help drop the amount of light needed from your flash. You'd need to cut the shutter speed also I guess if you did. Is there a way to frame your shot tighter and still get the same feel so you could move the light source closer? Just trying to think of things to try before buying more stuff. Nice looking shot though.