i do like the warm tones of 2, although the washed out sky can be avoided by using a 0.9 graduated ND filter. a do agree that the 1st pic lacks a subject - maybe a person standing somewhere at the top of the stairs might have changed the pic. also, the 3rd pic is slightly underexposed.
from ur pics, u might probably want to invest in a WA zoom and a dedicated macro lens in the future. of course, these are just 3 of ur pics, so things might change. btw wat lens did u use?
my 1st shots were worse than these, so continue shooting, and have fun;p