Hello again.. in this last days of this thread. I back again and I´m so happy some talk about my pics.. and I decide to show how was the light i used in my earlier photos. I close the gate of the barrca as you see now with this chair and only this low light.. with for my cam.. the time was open the aperture was betwen 20 seconds until 30 in this last with ISO of 100.  ONly with this little ray of light and was around 13:30 hours in Spain. 

About the last question.. I think .. I love specially when create some special mood and atmosphere.. and some times is in the night and others... at day.. but low light create also a interesting atmospher. Only need a tripod of course... I like this mood inside the barraca... 

I have another strange pic... I took when forgot  the aperture is open and turn 90 degree the tripod during this time (around 20 seconds and still was working 10 seconds more).. The effect was so strange... and maybe i post in gallery..