When I shoot landscapes, I like to try and tell the whole story. To do that, I usually look for the big picture, then work my way down to the details. That helps gives me a bit of focus in trying to figure out what to shoot. After all, figuring out what to shoot is often harder than figuring out how to shoot it!
Here are three images from a ridge near the Rio Grande River, looking south into Mexico.
Then walking in a bit and working with individual cactus, like this one.
And then zooming in with a long lens to isolate just the blooming ocotillo against the Sierra del Carmen mountain range of Mexico in the background.
Image 1: Ocotillo and cactus in bloom against Sierra del Carmen mountain range in Mexico, Big Bend National Park, Texas, USA. Canon 1Dx. 78mm. ISO 400. f/16@ 1/10 second.
Image 2: Blind prickly pear and ocotillo in bloom along Mexican border, Big Bend National Park, Texas, USA. Canon 1Dx. 16mm. ISO 400. f.16 @ ⅛ sec.
Image 3: Ocotillo in bloom, framed against Sierra del Carmen mountain range of Mexico in background, Big Bend National Park, Texas, USA. Canon 1Dx. 200mm. ISO 500. f/14 @ 1/250 second.