I really like 006. Looks very good large, well composed.
I'm afraid 003 and 004 suffer from my pet hate.... Horizon lines that are not horizontal. It's all too possible that the ground may slope, but as a viewer there is not enough information to validate that, so that horizontal line needs to be parrallel to the frame.
This is where in my opinion a spirit level does nothing to help the photographer. Horizon lines are a matter of perspective and supporting information such as trees/buildings to validate what is within the frame.
Sorry - my wife has given up hope on me regarding my pedantic approach to this sort of thing and gets really embarrased when I correct people's hanging pictures! But then she always asks me to do do the checks when we are doing any DIY!
--
Neil....
The Sky is a Beautiful Place