Hey DS - where specifically?? My missus and I went down with friends back in Oct 2013 - spent a few days at Arches National Park (Outside Moab), Grand Canyon (only 1 day - wish it was 7) and Zion National Park. I'm sorry that I don't have pics to share, but I was impressed by the scenery and simply in awe at what nature had created. We took over 4000 pics over two weeks. If you get a chance to get to Arches National Park - definitely visit the Delicate Arch for the evening pics and watch the colors transform as the sun begins to set. There were about 100 people when I went. Make sure you bring a jacket as it gets a little chilly when the sun sets. Same goes the Canyon - there are many viewpoints to chose from (we went to the South Rim). I found that the morning colors were more exhilarating than the evening.
You'll most definitely enjoy the adventure.