Colours are pretty good, but I think the composition could be improved by shifting the subject further to the left. There's not much right now in the bottom left corner of the image, but I would like to see more of the buildings on the bottom right, which she's currently obscuring. I think that would add to the overall image. Doing this would also allow more of her shadow into the photo. Basically, she's currently too central to work well here. She's also slicing the lovely green patch of grass into half.
It's good for a holiday snapshot though. Much better than the nonsense I usually take of people I know on holidays.