Which Photo Do You Like Better?

I uploaded a few of my photos to National Geographic Your Shot forum. What could I have done better with any particular shot? Please go to http://yourshot.nationalgeographic.com/profile/333842/# to critique my work. I can take constructive advice so please be frank.

B K2013-10-01T05:14:50Z

They're very good. I have no criticism really.

Although something to bear in mind - fhotoace is right about the HDR thing.

Joey from the block2013-09-30T20:25:43Z

I cant say anything bad, they all look really good. especially the subway one. im not a photog but most people seeing your photos will be viewers only!