I like the first one as well, this is one of my favorite themes to photograph. I feel like the third one has promise, but I can't quite put my finger on what is missing... maybe someone with more experience than myself can help.
These are nice images, but they lack contrast and are kinda dull and flat. I edited the one that has most potential to give you an idea of what i mean:
I might have gone a little too far here but you get the idea