You're right about the shadow mate but sometimes these things aren't noticed at the time. I feel your pain. Having said that taken as a whole these are great shots. All are technically excellent but the winners are 2, 4 & 7. 2 because it's beautiful. It's a stunning view to my eyes. 4 is good too because it has some foreground interest which also adds a sense of scale. That seems to be difficult for people to achieve at the Grand Canyon. If I could afford it I'd like to go there and prove myself right

I like 7 because I really, really like bridges. I like the symmetry of them and I like how despite this they can actually add to a landscape. Your shot captures that perfectly.
It's becoming quite common for Man & Nature to be portrayed as some kind of competing entities and they're not. We
are nature.
zorro.
_________________
http://zorrofox4.deviantart.com/
Various lenses, SB800 & Manfrotto 190 with 460MG head