Cut that music up! You might be surprised how much flexibility you gain with music editing when you look at the waveforms and match up measures. Most especially if you know a thing or two about chord structure, you can make a pre-existing bit of music fit just about anything. We do this a LOT in advertising.
Anyway...pretty good stuff. I'd maybe err a touch lighter on the shadows (make sure your monitor is calibrated!! what platform are you on?) but I certainly don't mind the saturated look.
This may sound cheesy, but think about the story you're telling next time you're looking for cool shots to get. "Story" doesn't have to be narrative or even comprehended by your audience necessarily...just something like 'our day trip to this bridge' or 'where in the middle of desert is this' or 'how this has withstood time and elements' running through your head with give you some ideas about beginning/middle/end, cause/effect and lead to ideas, variety, and flow.
I.E. just going with the obvious day trip line, you're gonna start with something about getting out there...which would lead you to clean empty desert and driving shots...which I'm guessing would be awesome here (and fun). Even just the subtle causal relationship between 'drove through desert in 4x4s > saw sweet old bridge' will add a bit of subconscious satisfaction to the experience and match up well with music (which almost always builds).
There...100k of film school in a nutshell