You've got a nice shot of the bridge and the couple in front of you give nice detail along with the child to the left, but did you give it this purplish tone?? Why?
Excellent lighting and nice composition, but it looks extremely soft and lacks detail. This is most certainly caused by using a too low jpeg quality. The max filesize is 150kb, this one is 40! There is plenty of room to save at a higher quality, it will give much more detail, better edge sharpness and will get rid of the soft look.
It could look great.