2 exposures.
One negative holds black mask over the bottom, the other over the top, with sky being the same intermediate white between the two. Since one had black over bottom half on the digital negative, and the other had black on the top, when the pictures were “exposed” they fussed together as a common positive, then there was some burning and dodging to make the two the top and bottom come together smoothly. Then I added a photo warming filter for aesthetic value.
In my book this leans more towards the photography section because I only overlaid, burned and dodged just as done in the darkroom with no other effects.

Please let me know what you think or if you have any questions.

Model: morgan