Most of them are too centered with no real focal point. Sure they're pretty, but nothing really stunning or eye catching (on most of them). Many of them are also poorly lit, you could benefit from a flash for some fill. There are some that are overly soft, probably need to work on your longer lens technique (higher SS, holding steady, ect). Lastly you need to watch your horizons and keep them level. Lightroom makes it so easy to straighten a picture there isn't any excuse for having a plef'd image. That being said, they do show promise and you've got a pretty decent eye, keep at it.