My advice (maybe too late for your trip) is to regularly review the images you shoot via the display screen on the back of the camera. While you are shooting. You will see some of the more glaring problems and hopefully have the time to make adjustments to straighten things out. I try to anticipate problems with back-lit situations that underexpose important parts of the scene, but sometimes I end up taking a sequence of images with different amounts of "over exposure" to get what I want.
I don't regularly use the auto-bracketing feature of my camera (T2i), but that can help you avoid missing good shots. As others have offered, "take lots of images", and be creative. Taking a few pictures while holding the camera well over your head may give you a different effect (background) that you like.
Many (probably most) cameras have several "automatic" modes. Use them as well. I often find that when I use the landscape/outdoors setting, it gives more saturated colors that I like. I will also take the same shot using several of the automatic modes, to see how they differ. One will possibly be distinctly better than the other. There is no better way to learn, than by experience. (Well, training helps...)
Happy shooting.

(Hawk shot this month.)