Guardalume Logo

I'm working on a logo for a Brazilian photographers couple.

Guardalume means something like 'keep the light' or 'collect light'. They will work together in a homeoffice studio for now, and want to keep their identity very warm and 'homemade' mood.

Don't know if the concept is very clear, but I've tried to make both hands in sort of a 'donation' gesture with a shutter/light point in the middle.

Of course there's some amount of work to be done here, but feel free for give me your first impressions and feedback. :))))

Any idea would be very appreciated.