I made a little video that show a little bit of what I do to some of my characters. It contains 3d nudity, which probably isn't a surprise to you if you follow me, but I'll still give you this warning.
In the video, I use GIMP 2.9 to remove "underboob shadow" from a character. This is something many textures have, but can be annoying when you want a smaller or very perky breasted character. This is done by using the "Heal Tool" in GIMP. Other programs may have different names for this. Basically, Heal is similar to the Clone Tool, but instead of overwriting all the pixels, Heal tries to blend those pixels in for more natural look. This tool is fantastic for all sorts of things, like removing blemishes in personal photos. Or adding in blemishes, freckles and other features to a plain skin texture.
If you need to know where the textures are, one way is to load your figure in Daz, and click on the "Surfaces" section. Find any of your skin elements, and let your mouse hover over any sectio