My opinions on the three:
Blue mod: Coooold. The change makes the photo very eerie. Like the ghost of a keeper long past is going to jump out at you any second.
Original: Like Paul said, it captures the heart. It has warm tones up top, morphing to cool ones on the bottom. Very unique!
John's Orange Mod: Martian looking, but cool (in the neat sense of the word). It definitely looks like a sunset. Very interesting!
It is amazing the changes that can be made with the features available in imaging software. You can do so many things to a photo. But of course, only the original can truly evoke the feeling of being there.