In fact this the WPBakery parallax image so we don't have much control on it but i can be done in the other way
You can clone this ROW and add to this second ROW another image with this girl and change it to the image with only the face.
Let's start: 1) Open this column and disable only the visibility of this column on mobile: http://nimb.ws/PQWhmp and save. 2) Clone this ROW, change your parallax image to something else and go the Responsive tab and check everything except the smaller resolution: http://nimb.ws/4L6FsK and save
That's it. Now you can choose which image will appear on the high and low resolutions.
Comments
In fact this the WPBakery parallax image so we don't have much control on it but i can be done in the other way
You can clone this ROW and add to this second ROW another image with this girl and change it to the image with only the face.
Let's start:
1) Open this column and disable only the visibility of this column on mobile: http://nimb.ws/PQWhmp and save.
2) Clone this ROW, change your parallax image to something else and go the Responsive tab and check everything except the smaller resolution: http://nimb.ws/4L6FsK and save
That's it. Now you can choose which image will appear on the high and low resolutions.
With Regards
Daniel