This is very probably the same individual, it is not like these spiders are very common here. This time she has build a web near the front door to our house and she was there for two days. She has caught one caterpillar but nothing else, so after two days she packed up her ropes and went somewhere else. But on the second day, she was on the web with her back towards the wall and her belly towards me, so I could take a picture. See below the fold.
I had the species identification confirmed by an actual spider scientist.