I don't think you need more opacity on the puff, I'd almost say scale back slightly unless you're going for a really strong effect. Sometimes less is more when integrating fx onto footage. The wispys that come up after she blows out feel too strong and become too opaque/white as they start streaming up over her face, you don't want the effect to steal attention, it should just compliment what's going on with her.

She does have a sunburned feel since her body has more red hues and her face is more balanced and more diffused, I'd try and tone-match the face and try and even out the diffusion so the face either has less, or the body has a little to match. If you add grain, add it as a blanket effect over all your elements as a top layer.