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I agree with the other comments about the processing, but maybe there are some issues with your camera settings, too--as seen in the landscapes. For example, the flowers were rendered as blobs of color. This could be an artifact of processing (e.g., over-correction of noise), or a result of camera settings. After checking the EXIF data for your images, the images don't do justice to your equipment (assuming you have a decent, clean lens on your 1dx). To get sharper images from the camera, I'd suggest a higher ISO, allowing smaller apertures for more DOF and faster shutter speeds to reduce motion blur (e.g., from camera jiggle or breezes moving flowers). With your equipment, ISO 100 is very low. Bracketing could also help obtain optimum exposure. Maybe you have done what most of us have done as holdovers from the film days--act like you're shooting Velvia or Kodachrome and underexposing to get more saturation. However, digital works the other way around: expose to the right on your histogram. Underexposing produces muddy type images when you correct the exposure in processing. This causation is all hypothetical on my part, so experiment to find what works best.