Please ask a photographer or ps master for advice. The upper left corner of this photo is too white to see, but it is not too dark because it is a commodity photo.

1, use the mask to determine the selection and draw the upper edge of the receiver that needs to be reflected (you don't know what shape it is, do you? );

2. Apply a vertical black and white gradient to the selection in the new layer, and then change the blending mode to soft light;

3. Fine-tune. . .

. . . If you don't know. . . I'll do it for you tomorrow ~ it's too late ~