I'm male, a retailer, and test women's skis extensively. Our shop is in Tahoe so I also get a pretty fair amount of feedback from our women customers who demo skis from us and/or hang out while we work on their boots etc. Here's my .02 worth.
Volkls in general and the ones you are asking about in particular are stiffer than many other skis. As a result, they will require a fair bit of effort to flex them. Also, unfortunately as the system skis from Volkl get shorter they get usually get stiffer which might not be what you need.
The Attraxion VI is very nice and easy going sking ski with enough juice for any strong intermediate or moderately advanced skier. Despite being slightly narrower, it is better in soft snow than the Tierra for your type of skier. The VI has pretty good edge grip and a fairly deep sidecut so it can be a quick turner.
I am not a huge K2 fan in general but I have to say that the Lotta is a great ski for someone who skis at a relaxed pace. It is soft and compliant, easy to ski in shallow powder and crud and it is smooth if not especially grippy on harder snow.
Tha Attraxion has a bit of an edge on harder snow, the Lotta is a little better in soft. I'd probably suggest that you pass on the Volkls.
PS..........It's probably best not to post the same Q twice (just gets us confuzed)....