When I did the artwork, I had to keep in mind that the lighting in the two photos was different. Highlights
in their eyes were on different sides and the shadows, dark, and light areas were opposites because of this.
I made adjustments...as you can see from the rough sketch, I originally planned to move her eye direction
but ended up moving the direction of both their eyes a little bit, so they would be looking in the same direction.
So this makes the likenesses a bit 'off,' if you are wanting to see perfect photorealism, but I think in
the end it does make the portrait better overall that the subjects look in the same direction as if they were originally together
in the portrait.
I added shadows also that were not in the original reference photos, because for example, her hair would
cast a shadow on his shoulder.