What I do to blend (if you wana blend her is erase part of her bottom shirt and when you erase, erase in a diagonal manner following the flow. other then blending, the right side is empty
my blending depends on what im doing.. ill usually make a few duplicates of the render incase i mess up but ill have a copy of the render & add a Gaussian blur to it and on the original render ill erase some of the more noticeable edges.. either that or ill smudge very lightly around the edges of the render.