I sharpen all of my photos, I crop most of them, and if the color's off, I tweak it. My camera doesn't always get the colors right, so if I see that the foliage is wrong -- too bluish-green or too yellowish-green, I adjust the color balance until the leaves look right. Lately I've been carrying a white piece of typing paper around the garden with me when I take pictures because my camera refuses to capture some colors unless they have a white background.