Lello,
Well you have also cracked the light flow round the bowl. Nice touch using the bauble to show it.
It may be worth making a bit of a hood over the bowl window to gain extra power from the flash. A lot of the light will bounce off. Christine discovered the benefit of a bit of a cowl. I reckon you will gain 1 stop minimum.
Tomato tin !! There's lateral thinking.
As for enthusiasm, its down to you guys joining in, and as you say between us we have developed something really useful and
DIRT CHEAP.
Don