blur edges of one photo inside of another?

[laural80579375]

I'm practicing with a green screen for the first time.  In addition, I'm trying to change the scale of my barbie in relation to the background.  I'm not sure how to smooth out the one photo into the other.  I've played with the green screen elements but I want barbie crisp but the mountain to blend into the other mountain.  I've tried with gaussian blur and with opacity. 

Any suggestions?  Images attached. 

thank you!

[Meg The Dog]

Draw an Opacity Mask and add feathering around the barbie clip:

MtD

[laural80579375]

Thank you!

[laural80579375]

Is there a way to reduce the halo around her? 

[Meg The Dog]

Trim up the opacity matte to a tighter proximity to the subject. Or you can use multiple masks - one mask with no feather that surrounds/cuts out the character, another the masks the area of the mountains that has more feathering.

MtD

[laural80579375]

Thank you Meg and Ann! I loaded my photos as a sequence and tried to get PP to track the masking throughout a sequence but it didn't adjust as the barbie moved.  Isn't that what tracking is supposed to do?

[Ann Bens]

Please do NOT add images via the "attach files" box, as you are then forcing everyone to DOWNLOAD the file to view it outside their browser. Drag/drop the image files directly ONTO your reply box so other users can see them without needing to download unknown strange files.
Thank you!