It looks like most of your shots were taken in pretty flat light. It's difficult to take popping landscape photos in those conditions. A polarizing filter would help, but there's no substitute for good natural light conditions.
I keep the white balance on my 50d set to auto for good results. I shoot jpeg files and they don't take too much tweaking if the light conditions are good. I like to hunt for good light rather than rely on software to resurrect marginal photos. It makes it more fun to me to "hunt" for shots.
Some of the shots don't seem sharp enough to me. That could be motion blur... too slow shutter speed shot offhand would be my guess. You can crank up the iso on the 70d without much noise. That will allow faster shutter speeds and offhand shooting. That big lens needs a 1/500 shutter speed to shoot offhand when it's fully extended. Study your image data to make sure your speeds are adequate for that lens.
I do think your compositions are very nice. I would like to see what your big lens can do in better light. It gets excellent reviews. Great shots!