I like this composition more than the other one, although the pose on your model in the other shot is also terrific. That Hektor also works really well with colour, love the muted tones, so far away from the over-saturated cr#p that permeates a lot of photos these days.
I agree with Tony: both pictures are great, but I prefer this one. I like the pose and the stark graphic feel of the setting. I also like how her leg echoes the verticals of the columns. Well done.